See the multi-choice question below:

Sentence 1: And the easy job turned into hell when the regular computer-man couldn't take any more and quit, leaving Dave to do everything, including making the field tests to gain the needed data.

Sentence 2: Dave suddenly had a lot more responsibilities at work.

If the first sentence is true, then is the second sentence true?
Possible answers: 1). yes. 2). it is not possible to tell. 3). no.
1).