See the multi-choice question below:

Sentence 1: He does that here, too, but with a somewhat milder I think what I think, and the hell with the rest of it, the rest of you; you don't actually exist for me anyway--you're all myths in my head.

Sentence 2: They are all myths in my head.

If the first sentence is true, then is the second sentence true?
Select from the following. (1). yes; (2). it is not possible to tell; (3). no;
(1).