Choose the missing terms out of the given alternatives. AYBZC, DWEXF, GUHVI, JSKTL, ?

The correct answer is A. MQORN.

The sequence is a simple substitution cipher, with each letter being replaced by the letter three places after it in the alphabet. So, A becomes D, B becomes E, C becomes F, and so on.

AYBZC becomes DWEXF.

DWEXF becomes GUHVI.

GUHVI becomes JSKTL.

JSKTL becomes MQORN.

The other options are incorrect because they do not follow the pattern of the sequence.