Directions: Pick the odd one out.
Half, shelf, proof, wolf, loaf
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Half
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Shelf
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Proof
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Wolf
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Loaf
C
Correct answer
Explanation
Correct. The four words - half, shelf, wolf, and loaf – follow the same rule while forming the plurals (by changing the final letter –f into –ves). Thus, the plural forms of these words are – halves, shelves, wolves and loaves. The word ‘proof’, though ending with –f, is an exception. The plural of proof is proofs.