I think is the answer is C
Turner and killian considered these people exploiters ,because they were using the event for their own malicious purpose instead of harmonizing with the actual deed of others.
Either
"Success will become ever more elusive"
or
"The elusive thought he had had moments before"
Just add 750 and 400 to get 1150. 5th century means 400 yrs after bce.
Answer:
African American soldiers who fought in the Plains Indian Wars.
Explanation: