Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
Input: Statement: The Evaluation of Broad Aim  Experimental Design, Its Difficulties and an Alternative. Choices: 1. Evaluating broad aim experimental design along with its alternatives and difficulties.  2. There are so many difficulties in obtaining broad aim design.  3. There are no difficulties included with broad aim design.

2