It's actually D. Dr. King's exact words are quotes, and he is given credit for it.
Explanation:
I chose D because he literally said those words during his speech and he wanted not only to give black people the rights, but to have respect to those black people that were being mistreated. Like Rosa Parks, she sat on a white man's seat in the bus and refused to move because she wanted to make a change for black people to ride the bus however they choose and making a change in society.
I think that's all, but I'm not sure that I'm made all of the points right. But hopefully this helps.
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".
There are many examples in this excerpt, a few of which being:
"whether you can see it or not. I am a doctor, dear, and I know." "Bless her little heart!" ... <span>"she shall be as sick as she pleases!</span>" "What is it, little girl?"