Two ways in which colleges changed during the late 1800s

Explanation:

1820-1920, enrollment quadrupled due to developments in medicine.

They started offering classes in modern language, engineering, and psychology    

i think your answer there is c

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.