Answer:
B. A peasant rebel rounded up troops and defeated Qin forces.
Step-by-step explanation:
The Han Dinasty was initiated when the Qin dinasty, a cruel and caotical dinasty came to an end, the first Han emperor had been a low ranked official and raised an army to have a claim to the throne, he officially defeated every rebellion against him for the throne and his empire started oficcially in 202 BCE when he defeated the last rebellion against him. The Han dinasty was a prosperous era on China´s history, it almost resembled the Roman Empire, it lasted for four centuries and it has been ever since the example for other emperors in China.