Which of the following letter cluster will replace the question mark (?) to complete the given series?
CATCH, DATCH, DCTCH, DCWCH, ?, DCWGM
The first, second, third, fourth, and fifth letters of the word left end are added (+1), (+2), (+3), (+4), and (+5) in each step respectively.
CATCH ==>Â (C+1) ATCHÂ ==>Â DATCH
DATCH ==>Â D (A+2) TCH ==>Â DCTCH
DCTCH ==>Â DC (T+3) CH ==>Â DCWCH
DCWCH ==>Â DCW (C+4) H ==> DCWGH
DCWGH ==>Â DCWG (H+5) ==>Â DCWGM
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