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: Blue-grass training? As his father repeated the expression Drew realized the slip of tongue he had made. Choices: 1. His father had expressly forbidden him to talk about blue-grass training. 2. Drew accidentally told his father about blue-grass training. 3. Drew accidentally told his father about his new girlfriend, Rose.
3