I do believe that, after research, it is C, Coltan.
Correct me if I am wrong, but do have a good day!
Answer:
An exceptionally bright child, Richards was very special to Elizabeth Van Lew. Van Lew had Richards baptized in a white church and later sent north to be educated. This was extremely rare for a black child in the South.
The Magna Carta was first in 1251. Columbus discovered america in 1492.
B. because a trench warfare is where troops are protected from the enemys fire and defend their place.