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In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options.

AB, DEF, HIJK, ?, STUVWX

Option:
A. MNOPQ
B. LMNOP
C. LMNO
D. QRSTU
Answer: A . MNOPQ

Justification:

The number of letters in the terms goes on increasing by 1 at each step.
Each term consists  of letters in alphabetical order.
The last letter of each term and the first letter of the next term are alternate.

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