If Y and X interchange their places, so do H and Z, then who amongst the following will face E?

In row-1, E,F,G & H are sitting facing north while W,X,Y & Z are sitting in row-2 facing south.

The Doctor of row-1 sits second to the right of H.

Case 1 : H sits at extreme left end of row 1.

Also, X faces one of the immediate neighbours of H, => X sits opposite to the person who is immediate right of H and Scientist in row -2 sits at extreme left end.

Now, The one who faces the Scientist of row - 2 is an immediate neighbour of E, => E is doctor in row-1 and H is the pilot.

W sits second to the right of Z, => W sits at extreme right end of row-2 and Z to the immediate left of X. Only position left in row-2 is extreme left end, which is now filled by Y being the scientist. The arrangement is :

But doctor of row(II) does not sit at end and Z is also not the doctor. Thus, this case is not possible.

Case 2 : H sits at second from left end of row-1, => Doctor sits at extreme right end in this row.

Also, X faces one of the immediate neighbours of H, => X sits at extreme right end of row-2 and the scientist sits second to the left of X.

Now, The one who faces the Scientist of row - 2 is an immediate neighbour of E, => E is doctor in row-1 sitting at extreme right and H is the pilot.

W sits second to the right of Z, => W sits to the immediate left of X and Z to the extreme left end of row-2. Only position left in row-2 is occupied by Y being the scientist.

Since, Y and G does not sit opposite to each other, => G sits at extreme left end of row-1.

The arrangement is :

Currently, Z is facing E, if Z and H interchange their positions, then H will face E.

=> Ans - (B)