Fill in the blank (_) in the following sentence from the following choices.
Sentence: The woman applied 2 layers of fabric to the board but only 1 layer of felt because the _ was thicker.

Choice 1: The woman applied 2 layers of fabric to the board but only 1 layer of felt because the fabric was thicker.
Choice 2: The woman applied 2 layers of fabric to the board but only 1 layer of felt because the felt was thicker.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. The woman applied 2 layers of fabric to the board but only 1 layer of felt because the felt was thicker.