Many wealthy American industrialist of the late 19th century used the theory of Social Darwinism to

justify monopolistic actions .

Explanation:

They used this theory so they could strengthen their influence and their monopoly in the area where they had their dominance.

It was focused on the theory that the fittest are surviving and therefore that those who are having more influence and strength will prevail and thus enable their further prosperity.

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.

trade in silk, spices, and precious metals.

answer first choice