Part A
The inference that can be made based on the information in paragraphs 1 and 2 is:
The Tubman family does not want what happened to their sisters to happen to them.
This choice suggests a motive for the Tubman family's desire to escape, aligning with the historical context of the threat of being sold or separated.
Part B
The detail from the text that best supports the answer to Part A is:
“But they soon turned back when her brothers, one of them a brand-new father, had second thoughts.”
This detail emphasizes the fears and concerns of Tubman's brothers regarding the risks associated with escaping, as they do not want to experience the same fate that befell their sisters.