Answer would probably be B.)
No, because a PBS documemtary could not have witnessed something and retold it. It most likely is a secondary source, if they interviewed people who have witnessed the thing they are talking about.
I think it’s very awesome, did you paint these?
I think these is very awesome, and it’s very cool because this painting is all about strength and positivity.
If you are asking whether the statement is true or false, then the answer is true. Any country that is in trade with another must have some form of exchange currency in order to be productive. I hope this helped.