Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
RXD RUJ RRP ROV
ARLC
BRDA
CRDF
DRLB
ARLC
BRDA
CRDF
DRLB
Related Questions:
A square sheet of paper is folded along the dotted line successively along the directions shown and is then punched in the last. How would the paper look when unfolded?