If the English alphabets are written in the reverse order and every alternate letter starting with Y is dropped, which letter will be exactly in the middle in the remaining alphabets ?

The correct answer is (b).

If the English alphabets are written in the reverse order, we get:

ZYXWVUTSRQPONMLKJIHGFEDCBA

If every alternate letter starting with Y is dropped, we get:

Z X W V U T S R Q P O N M L K J I H G F E D C B

The letter exactly in the middle is M.