In a code language 'MOUSE' is written as 'PRUQC'. So 'SHIFT' will be written in the same code language as:

The correct answer is (A) VKIDR.

• Principle: This coding-decoding problem is based on alphabetical position shifting. Each letter in the source word is shifted forward or backward by a specific numerical sequence or pattern to form the coded word.
• Step-by-Step Deduction: Analyzing the pattern between 'MOUSE' and 'PRUQC':
  M (+3) = P
  O (+3) = R
  U (0) = U
  S (-2) = Q
  E (-2) = C
  Applying the exact same positional shift pattern (+3, +3, 0, -2, -2) to 'SHIFT':
  S + 3 = V
  H + 3 = K
  I + 0 = I
  F - 2 = D
  T - 2 = R
  Thus, 'SHIFT' is coded as 'VKIDR'.
• Verification and Option Analysis: The derived code 'VKIDR' matches Option (A) exactly. Options (B), (C), and (D) contain incorrect permutations of letters resulting from flawed shift patterns, thereby making them incorrect.