Which of the following letter number-clusters will replace the question mark (?) in the given series to make it logically complete?
FI31 EH39 DG47 CF55 ?
ABF63
BBE63
CBE64
DBF64
ABF63
BBE63
CBE64
DBF64
Related Questions:
A series is given with one missing term. Find out the missing term.
198, 187, 173, 162, ?, 137, 123