Which example does the best job providing a context for the facts it presents? Harriet Tubman was born a slave but managed to escape and lead more than 300 slaves to freedom. She was part of the effort known as the Underground Railroad, though it was neither underground nor a railroad.

Harriet Tubman guided more than 300 slaves to freedom. Every time she returned for another group of runaways, she placed her life at great risk—since she, too, was a runaway slave and therefore a well-known fugitive.

Harriet Tubman managed to rescue more than 300 slaves in her lifetime. She served as one of the most fierce and daring conductors on the Underground Railroad.