Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
TP_BD_T_R_ _QT_RB_Q _PRB_ _T_ _BDQ

Given: TP_BD_T_R_ _QT_RB_Q _PRB_ _T_ _BDQ

Logic: We have to put each option in the blank space when any option gives us a proper logical series that will be correct option.

From option (a):PBPRDTRQDPBR

TPPBDBTPRRDQTTRBRQQPRBDPTBRBDQ (not follows logical pattern)

From option (b):RQPBDPDTDQPR

TPRBDQ/TPRBDQ/TPRBDQ/TPRBDQ/TPRBDQ (Follows logical pattern)

From option (c):PBPTRQRDDPBR

TPPBDBTPRTRQTQRBRQDPRBDPTBRBDQ (not follows the logical pattern)

From option (d):RQPBPRDPBDTR

TPRBDQTPRBPQTRRBDQPPRBBDTTRBDQ (not follows logical pattern)

Thus, correct option is (b).