The correct answer is the following:
In Rowlandson's captivity narrative, the captive must trust in God's salvation before freedom will be granted.
"Narrative of the Captivity and Restoration of Mrs Mary Rowlandson" is a true story wrote by Mrs. Mary Rowlandson herself about the events that followed after her settlement was invaded by Native Americans and these took her captive. Rowlandson was a puritan woman living in Massachusetts, and in her recollection of how the events happened, she narrated how during her captivity she realized she needed to trust in God's salvation in order to be saved, which happened later on.