1.  J2Z, K4X, 17V, ?, H16R, M22P

A. I11T
B. L11S
C. L12T
D. L11T
E. L12S

Answer: Option D

Explanation:

The first letters in odd numbered terms from series J, I, H and in even numbered terms from the series K, L, M.

The sequence followed by the numbers is + 2, + 3, + 4, + 5, + 6.

The third letter of each term is moved two steps backward to obtain the third letter of the next term.