Answer :

The challenges that Byzantium faced at the time that Alexius Comnenus became the byzantine emperor were, “The people of Constantinople were struggling under high taxes and rising living costs.” Therefore, option C is the correct option.

What are taxes?

Taxes are the amount of money that is paid by the residents and the citizens of the country t the government. A higher amount of taxes can impact the life and survival of the people.

So, When Alexius Comnenus assumed the role of byzantine emperor, Byzantium was confronted with difficulties including "the people of Constantinople were struggling under hefty taxes and rising living expenditures." As a result, choice C is the best one.

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The given question is probably incomplete and the complete question is given below.

What challenges did Byzantium face at the time that Alexius Comnenus became the byzantine emperor?

A new round of iconoclasm had just begun.

The crusaders had turned away from the Holy Land and toward Byzantium.

The people of Constantinople were struggling under high taxes and rising living costs.

Slave revolts were becoming ever more frequent.