Which of the following actions by Moctezuma I indicates that he was a skilled politician? He solidified control over conquered cities by replacing their kings with puppet leaders.
He began a series of public works projects, including building aqueducts to prevent flooding.
He increased the number of human sacrifices.
He established the Triple Alliance while ensuring that the Aztecs stayed dominant.

D) He maintained the Triple Alliance while keeping Tenochtitlan dominant.

Explanation:

The Triple Alliance, also known as the Aztec Empire, was an alliance between three regions: Mexico-Tenochtitlan, Texcoco, and Tlacopan, they expanded quickly and conquered other regions in Mesoamerica, where they ruled for almost a hundred years (from 1428 to 1521), Moctezuma I was the leader of this Alliance for a long time, and with it and the dominance of the region of Tenochtitlan, he proved to be an skilled politician.

he believed that strong monarchies would lead to social and political stability.

c, they united with once