See the multi-choice question below:

Sentence 1: King Tribhuvan returned, a first constitution for the monarchy was installed, and some foreigners were allowed into Nepal.

Sentence 2: The return of the king prompted the installation of the second constitution of the monarchy.

If the first sentence is true, then is the second sentence true?
Select from:
[a]. yes
[b]. it is not possible to tell
[c]. no
[c].