Concept:A word can be formed only if every letter it needs is present in the source word.
Explanation:The given word is SMOTHERS.
Its letters are S, M, O, T, H, E, R, S.
Check each option:
THOSE uses T, H, O, S, E, all present.
METRO uses M, E, T, R, O, all present.
STORE uses S, T, O, R, E, all present.
TEARS needs T, E, A, R, S.
The letter A is not present in SMOTHERS.
So TEARS cannot be formed.
Answer:Option D: TEARS