One reason for the mass migration of many irish
to north america in the 19th century was
(1) a series of crop failures
(2) enforcement of a military draft
(3) civil war in ireland
(4) an outbreak of malaria

i think it would be c.

hope i'm correct

explanation:

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.