If in a code MOTHER is written as PRWKHU, the shift applied is

  • A. two places forward
  • B. three places forward
  • C. three places backward
  • D. one place forward

Explanation

M becomes P, O becomes R, T becomes W, H becomes K, E becomes H and R becomes U, every letter advancing by three. Checking all six letters rather than just the first is what confirms the rule. A backward shift of three would have given JLQEBO instead.

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