Which of the following actions by moctezuma i indicates that he was a skilled politician?
25 pts, will mark brainliest!

a. he solidified control over conquered cities by replacing their kings with puppet leaders.
b. he began a series of public works projects, including building aqueducts to prevent flooding.
c. he increased the number of human sacrifices.
d. he established the triple alliance while ensuring that the aztecs stayed dominant.