Answer: before
Explanation: A subordinating conjunction is a word or phrase that links a dependent clause to an independent clause. Subordinating conjunctions are conjunctions that are used at the beginning of subordinate clauses. Some examples of these conjunctions are; although, after, before, because, how, if, once, since, so that, until, unless, when etc.
He must stay the victorious advance of the Turks.
But there remained further advance and further fortification.
We are really good on the reasoning part, but as far as our sensory inputs go, we are massively outclassed by cheap sensors
She had been the one who insisted that they wait until after marriage, but it was Alex who came up with sound reasoning for it.
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: