See the multi-choice question below:

Sentence 1: When you hear that despite the fact that he has economists who know better, the Justice Department's Joel Klein apparently either believes or chooses to claim that this case is about path dependence, you start to wonder.

Sentence 2: Joel Klein's claim that the case is about path dependence is fully backed up by his economists.

If the first sentence is true, then is the second sentence true?
Options:
a). yes
b). it is not possible to tell
c). no
c).