See the multi-choice question below:

Sentence 1: Though Ferber hasn't put out the white flag, Brazelton is sounding less and less dismissive of parents who sleep with their kids.

Sentence 2: Sleeping with your kids can lead to accidental smothering in your sleep.

If the first sentence is true, then is the second sentence true?
Pick your answer from: 1). yes; 2). it is not possible to tell; 3). no;
2).