The most accurate response regarding the similarities and differences between indentured servitude and chattel slavery is:
One similarity is that people involved in both systems were forced to provide free labor. One difference is that indentured servants were not forced into labor for generations, while people forced into chattel slavery were.
This response highlights the critical similarity that both groups provided labor without compensation, while it also accurately emphasizes the key difference that indentured servitude was typically for a set term, while chattel slavery was a lifelong condition often passed on through generations.