Respuesta :
D because becoming a state isn't even close to imperialism, neither is economic unions or declaring independence.
The correct answer is D - In 1902 Britain wins the South African War and takes over the Transvaal.
The word imperialism means “a policy of extending a country’s power and influence through colonization, use of military force and other means”. This is exactly what happened at the South African War.
The Boer South African Republic (Transvaal) wanted independence - maintain their cultural style, religious beliefs, own language and their way of life - but Britain had interests in that area - especially the gold mines. This is all classic imperialism traits.