Which best explains why the Spanish were able to defeat the Aztecs?

A. The Spanish found allies among enemies of the Aztecs.
B. The Spanish destroyed the Aztecs' weapons.
C. The Aztecs were weakened by civil war.
D. The Spanish outnumbered the Aztecs.

the answer is A I studying this topic this year.

Explanation:

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.

there are no answer given

explanation: