C4X, F9U, 116R, ? - Alphabet Series - Series Completion - Verbal Reasoning question

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - C4X, F9U, 116R, ?

A. K25P

B. L25P

C. L25O

D. L27P

E. None of the above

Answer: C. L25O

The first letter of each term is moved three steps forward and
the last letter is moved three steps backeard to obtain the corresponding letters of the next term.
The numbers from the sequence 2², 3², 4², 5².

Posted in: Alphabet Series - Series Completion - Verbal Reasoning