In a certain code language, if MONTH is coded as TRSMY, then how is PLACE coded in that language?

In the word MONTH, Positions of M,O are interchanged & Positions of T,H are also interchanged. Middle letter N remains in the same position. Then the word will be OMNHT. Each letter in this word is added by 4 for it's position value in alphabets and replaced with letter in that position. For example, O is replaced with T and there are 4letters between them. (P,Q,R,S) Similar logic is used for word PLACE and code formed would be QUFJH

So, the answer would be option a)QUFJH