Who was the ruler of the aztec empire when the spanish conquest began? a. moctezimo b. moctezuma c. xiuhtecuhtli d. tenochtitlan?

The correct option is  "b. moctezuma"

Moctezuma was Tlatoani of the Mexica between 1502-1520.Moctezuma Xocoyotzin, son of Axayácatl and Izelcoatzin, daughter of Nezahualcóyotl, was the ruler of the Mexica city of Tenochtitlan whose dominions extended to the cities of Texcoco and Tlatelolco from 1502 to 1520, arrival of the Spaniards. He was elected after the death of Ahuízotl, who died during the flood of 1502. He was elected military chief during military campaigns of Ahuizotl. Already elected, he maintained an energetic policy even towards the internal and implemented mechanisms to focus power on his person. In order to structure his domains, Moctezuma organized the empire in various provinces, created a solid central administration and regulated the tax system. At the moment of receiving the power, the alterpetl (señoríos) submitted numerically were many and taxed high economic burdens, but were scattered in geographical areas containing enemy regions such as Tlaxcala, some manors of Xoconochco and Purépechas, so he focused his device military to the subjection of such powerful altepetl, which ultimately did not succeed.

the answer is c.

i hope this .