See the multi-choice question below:

Sentence 1: A National Enquirer story, probably based on a White House leak, quotes Clinton saying that Monica is dangerous and that she hallucinates.

Sentence 2: Clinton doesn't know anyone by the name of Monica.

If the first sentence is true, then is the second sentence true?
Options:
[1]. yes;
[2]. it is not possible to tell;
[3]. no;
[3].