See the multi-choice question below:

Sentence 1: At the height of its power, in the second century b.c. , Pergamum was one of the most splendid cities on the Aegean coast.

Sentence 2: Pergamum became so powerful due to its advantages in the wool trade.

If the first sentence is true, then is the second sentence true?
Choose from:
- yes
- it is not possible to tell
- no
it is not possible to tell