See the multi-choice question below:

Sentence 1: If he becomes a serious threat, Livingston and other GOP leaders will make sure to stop him.

Sentence 2: Livingston and the other GOP leaders will stop him if he becomes a serious threat.

If the first sentence is true, then is the second sentence true?
Pick your answer from: (a). yes (b). it is not possible to tell (c). no
(a).