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: In addition, national saving may vary across countries due to differences in the price of capital goods, income levels, growth rates, economic and social policies, demographics, and even culture. Choices:  1. National saving might vary across the countries because the price of capital goods is steady. 2. National saving might vary across the countries because the price of capital goods varies. 3. National saving might vary across the countries because the price of capital goods varies up to 50%.

1