It was extremely cheap to buy slaves and maintain them. It was also beneficial to slave owners because they could sell slaves for more money than they got them for. On top of this slave owners automatically owned any children their slaves had while under their ownership.
Answer:
B
Explanation:
Process of elimination:
A cannot be the answer as Vietnam was not a British colony
B can be the answer as both Kenya and Vietnam suffered violent revolutions
C cannot be the answer as neither Kenya or Vietnam were abandoned by their overlords
D cannot be the answer as Vietnam and Kenya's independence movements were not stopped by civil war in those countries
B is the answer