Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete? EMU, DNT, COS, BPR,?AAOQBBSTCUBODFCDAnswer: A. AOQ Read Explanation: Series:EMU → DNT → COS → BPR → ?Check how each letter changes from one term to the next:Position-wise movement1st letter:E → D → C → B → A (−1 each time)2nd letter:M → N → O → P → Q (+1 each time)3rd letter:U → T → S → R → Q (−1 each time)Apply the same pattern to BPRB → AP → QR → QSo the missing letter cluster is:AQQ Read more in App