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.

Statement: Her work has been in substance abuse prevention in schools, where she encountered many social and legal beliefs that ran counter to her prevention education efforts. Choices: 1. She wasa substance abuse counselor at a nursing home. 2. It was difficult to stop the students from smoking weed. 3. She worked in a school substance abuse prevention program.
1