Social Darwinists in the late 1800s and early 1900s used the philosophy of “survival of the fittest" to justify which national action?

Select one:
legislating progressive political reform

supporting local humanitarian aid

expanding existing colonial empires

creating regional trade partnerships

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

which time period is this? or is this story fictional, i'm going to need more info to answer this question

option a

explanation:

to cleberate the end of their war