Becca????????? I think, that's confusing
Maybe they aren’t so independent and they begin to do things in a dependent way. I can’t write a whole paragraph right now lols…
I think it’s b because it presents the actions
Answer:
In ancient times, Nubia was the principal corridor where "there were cultural influences transmitted" between Black Africa and the Mediterranean basin.
Option B is the the right tense of this sentence correction task "b. through which cultural influences were transmitted".
Explanation: