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.
One example: Statement: Next to the MGM Grand you will find M and M World, four stories of merchandise and memorabilia dedicated to the candy that doesn't melt in your hand. Choices: 1. The candy has many fans who love its attractions. 2. There's four stories of memorabilia dedicated to a candy. 3. That particular candy melts and becomes difficult to eat.
Solution is here: 3
Explanation: It is said in the statement that the candy doesn't melt in your hand, but the sentence in choice 3 disagrees with it.

Now, solve this: Statement: If the current in such a form moves first in one direction and then in the other, then it cancels out and is useless. Choices: 1. This kind of current can never be canceled out, because it is too powerful. 2. If a current moves in a specific way, it will accomplish nothing. 3. These currents are extremely powerful, and should not be tampered with.
Solution:
1