Which of the following terms follows the trend of the given list?
ABABCDAB, ABADCBAB, ABCDABAB, ADCBABAB, CDABABAB, _______________.

Expression : ABABCDAB, ABADCBAB, ABCDABAB, ADCBABAB, CDABABAB, _______________.

The above series is a combination of 4 'AB', but in each alternative term starting from the 5th position, 1 set of AB is replaced by CD and in the even number of terms, 1 set of BA is replaced by DC shifting one place to the left.

Thus, in the missing term (6th term), 4th B is replaced by D and first term C = CBABABAD

=> Ans - (D)