Answer:
poor whites and poor blacks could be united in a cause.
Step-by-step explanation:
Bacon's rebellion was against Berkeley, the Governor of Virginia at the time. Bacon, who gathered various disgruntled people (both poor white and poor black) to join his cause to fight injustice and betrayal of Berkeley who according to Bacon, has sold them to the barbarous heathen. In his attempts, the militia group led by Bacon burned down the Jamestown, send Governor Berkeley away, and terrorized his supporters.
Even though, Bacon died a sudden death after the incidence. Bacon's rebellion seemed to demonstrate to colonial authorities that "poor whites and poor blacks could be united in a cause."