Answer:
John Rockefeller was the oil monopoly
Explanation:
They wanted to show the people that the African-American population was strong and united, even though they did have their differences, often at the core of the battle, such as how the fight for rights should be conducted, or similar things. They presented themselves as united.
It’s a because they have limited control
He invented the Bolometer. An instrument capable of detecting minute differences in temperature
