Please let me know if I am understanding this correctly thank you.

Question

So when they asking if " this is a potent source are they asking if the source is strong?

C. Is this source potent? Yes

D. Why does this make it a good source? This makes a good source because it can be backed up with evidence

Answer 1

Yes, "potent" means powerful or strong.

Is the source backed up with evidence? or does the source include sufficient evidence to back up its own claims? There's a difference.