What marked the official transition from Roman Republic to Roman Empire? (4 points) When Gaius Marius began his rule as Consul

When Augustus, formally known as Octavian became Emperor of Rome

When Sulla marched on Rome and declared himself dictator

When Tiberius beliefs threatened the Senate and gained support of Rome's underclass

When Augustus, formally known as Octavian became Emperor of Rome.

Explanation:

With the conclusion of the Battle of Philippi in 42 BC, Augustus and his cohorts dissolved the Roman Republic. This marked the beginning of the Roman Empire which was ruled by Augustus until his death in AD 14.

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explanation:

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the answer is jerusalem