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: But there's no doubt he can throw light on one or two obscure points in young Beresford's letter. Choices:  1. The letter was perfectly clear on all points so we don't need his information. 2. There are ambiguous points made in the letter Beresford wrote. 3. Beresford is dead and so he can't explain this himself.

1