Final answer:
The long-term causes of Nathaniel Bacon's Rebellion were economic inequality and land disputes, as well as social unrest and class tensions. The correct option is C.
Step-by-step explanation:
The long-term causes of Nathaniel Bacon's Rebellion in Virginia included economic inequality and land disputes (option A), social unrest and class tensions (option D).
Resentment had been growing among smaller planters and landless tenants due to Governor Berkeley's favoritism towards the wealthiest residents.
These commoners received the worst land and paid high taxes to support the governor's inflated salaries.
Declining tobacco prices and conflicts with Native Americans also contributed to the social unrest and tensions that led to the rebellion. The correct option is C.