Select the option that represents the letters which, when sequentially placed from left to right in the blanks below, will complete the letter series.
P_ _ H _ _ C E _ Z P_ E H _
The logic followed here is:  H Z C Z P E C  PHZHC / ZCEPZ / PEEHC → Does not follow pattern.  C E Z P H C Z  PCEHZ / PCEHZ / PCEHZ → Follows pattern of PCEHZ.  Z C H P Z C E  PZCHH/PCEZZ/PCEHE → Does not follow pattern.  E P Z C H E C  PEPHZ/CCEHZ/PEEHC → Does not follow pattern.  Hence, the correct answer is (B).
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