Final answer:
The correct answer is option c, to secure a hostage. Nathaniel Bacon captured Mrs. Nathaniel Bacon Sr. as a hostage to use for negotiation or protection against counterattacks during Bacon's Rebellion in colonial Virginia.
Step-by-step explanation:
Nathaniel Bacon, a leader in Bacon's Rebellion, captured Mrs. Nathaniel Bacon Sr. as a way to secure a hostage. Bacon was leading attacks against various Native American tribes, including the Doeg and Susquehannock, without official authorization from his cousin, Governor William Berkeley.
By capturing Mrs. Bacon, he aimed to use her as leverage in negotiations or to deter any counterattacks from the governor's forces.