If the arrangement is repeated which of the steps given below is same as the INPUT row?

Divide the whole sequence into group of words of 4, 2 and 4 so in the input the-

First group will be- Smile Nile Style Mile 

Second group will be - Shine Wine

Third group will be - Mine Swine Bovine Feline

In step 1 the 1 and 2 of Third group are exchanging their position with the 3 and 4 respectively i.e.  Mine Swine are exchanging their position with Bovine Feline respectively with everything else constant

therefore step 1 is- Smile Nile  Style   Mile   Shine Wine  Bovine Feline  Mine    Swine

In step 2 the 1 and 2 of First group are exchanging their position with the 3 and 4 respectively i.e. Smile Nile are exchanging their position with Style Mile respectively with everything else constant

therefore step 2 is- Style  Mile  Smile Nile    Shine Wine  Bovine Feline  Mine   Swine

In step 3 the 1 and 2 of Second group are exchanging their position i.e.  Shine is exchanging it's position with Wine with everything else constant

therefore step 3 is- Style Mile Smile Nile Wine Shine Bovine Feline Mine Swine

In step 4 the 1 and 2 of First group are exchanging their position i.e.  Style is exchanging it's position with Mile , 3 and 4 of First group are exchanging their position i.e.  Smile is exchanging it's position with Nile and Similarly the 1 and 2 of Third group are exchanging their position i.e.  Bovine is exchanging it's position with Feline , 3 and 4 of Third group are exchanging their position i.e. Mine is exchanging it's position with Swine with the positions of Shine and Wine remaining same

therefor step 4 is- Mile Style Nile Smile Wine Shine Feline Bovine Swine  Mine

In step 5 the 1 and 2 of First group are exchanging their position with the 3 and 4 respectively i.e. Mile Style are exchanging their position with Nile Smile respectively and the 1 and 2 of Third group are exchanging their position with the 3 and 4 respectively i.e. Feline Bovine are exchanging their position with Swine Mine respectively with everything else constant

therefor step 5 is- Nile Smile Mile Style Wine Shine Swine Mine Feline Bovine

In step 6 the 1 and 2 of Third group are exchanging their position with the 3 and 4 respectively i.e. Swine Mine are exchanging their position with Feline Bovine respectively with everything else constant

therefor step 6 is- Nile Smile Mile Style Wine Shine Feline Bovine Swine  Mine

In step 7 the 1 and 2 of First group are exchanging their position with the 3 and 4 respectively i.e. Nile Smile are exchanging their position with Mile Style respectively with everything else constant

therefor step 7 is- Mile  Style  Nile    Smile Wine  Shine Feline  Bovine Swine  Mine

As can be observed the pattern is repeating

therefore step 8 will be Mile  Style  Nile    Smile Shine Wine Feline  Bovine Swine  Mine

step 9- Style Mile Smile Nile Shine Wine Bovine Feline Mine Swine

step 10- Smile Nile Style Mile Shine Wine Mine Swine Bovine Feline

step 11- Smile Nile Style Mile Shine Wine Bovine Feline Mine Swine

step 12- Style Mile Smile Nile Shine Wine Bovine Feline Mine Swine

step 13- Style Mile Smile Nile Wine Shine Bovine Feline Mine Swine

step 14- Mile Style Nile Smile Wine Shine Feline Bovine Swine Mine

As can be seen the answer cannot be step 9/11/14 therefore by eliminating the options we get the answer as step 20

Therefore the answer is option 'C'