Definition: In this task, you're given a statement, and three sentences as choices. Your job is to determine which sentence clearly disagrees with the statement. Indicate your answer as '1', '2', or '3' corresponding to the choice number of the selected sentence.
Input: Statement: And, for baby-boom rockers, when all other musical, lyrical, and sociopolitical claims for the rock 'n' roll revolution have collapsed, the memory of growing up with the Bob Merrill songbook will always be justification enough. Choices:  1. The Bob Merrill songbook has nothing to do with rock 'n' roll. 2. Bob Merrill's songbook was very popular and sold well. 3. The rock 'n' roll revolution has not stood the test of time.

1