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: Federal Reserve researchers estimated that, as of the early 1990s, U.S. investment including education and R and D had declined as a share of GDP since the 1970s. Choices:  1. Federal Reserve researchers found that US investment has increased. 2. Federal Reserve researchers found that US investment has declined, especially in higher education. 3. Federal Reserve researchers found that US investment has declined.

1