The correct answer would be B!
Fixed schedules and reinforced behavior is used for discipline and order
David Livingstone was a Scottish missionary, whilst Cecil Rhodes was an English businessman. Both somewhat helped kick start more colonization in Africa, with Livingstone creating a general curiosity of the Nile River, while Rhodes is quoted with starting the British Imperialism in South Africa. Rhodes is technically the founder of South Africa, while Livingstone was a missionary and explorer and was very interested in social justices, such as "rags to riches" and held an anti-slavery stance.
D I took a test and got it right on edg 2021