From the given alternatives, select the word that CANNOT be formed using the letters of the given word.

REVOLUTION

Given: REVOLUTION

Letters needed: O, U, T, L, I, N, E

All are present in REVOLUTION

Letters needed: R, O, U, T, I, N, E

All are present in REVOLUTION

Letters needed: R, A, T, I, O, N

A is not present in REVOLUTION

Letters needed: V, I, O, L, E, N, T

All are present in REVOLUTION

Thus, RATION cannot be formed because A is not present in the word REVOLUTION.

Hence, the correct option is (c) RATION