Ahistorian would find this poem most useful to understand

a. a point of view that opposed kipling’s claims
b. a point of view concerning imperialism supported by some europeans
c. the economic reasons the europeans supported imperialism
d. the effects of kipling’s poem in the 20th century

B. a point of view concerning imperialism supported by some Europeans

Explanation:

According to the main belief of the mid 19th century, the "civilized nations" would need to support the "uncivilized ones". However, this apparent help came under controlling everything related to that country. The main aspect we need to consider is that, for many Europeans, and according to the science of that time, some civilizations were strong and evolved, and because of that, should carry the other ones on his back, as a burden.

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.

no questions on whether they are allowed that right