How did sulla turn the roman republic into the roman empire?

a: he angered the senate by proposing that rome divide public lands among the returning military and their families.
b: he replaced the elected consuls and the senate with an empire that could be inherited by members of the ruler's family.
c: he angered the senate by convincing men to serve in wars by promising them land and citizenship.
d: he restructured the city's politics and strengthened the senate's power.

D: He restructured the city's politics and strengthened the Senate's power.

Explanation:

In the Constitutional reforms enacted between 82 and 80 BC, Sulla decreed strengthening of the Roman Senate, reducing the power of the plebeian tribunes and democracy in Rome. Along with the fact that he was appointed the dictator, this was the beginning of the end of the Roman Republic and the event that foreshadowed the civil war and the becoming of the Roman empire.

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