In effort to preserve learning, Byzantine scholars copied and taught using textbooks, which they collected in libraries. A) Chinese
B) Persian
C) Greek and Roman
D) Egyptian

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.