Which sentence best states the authors' claim in this passage?

•Sugar was so cheap that it made economic sense
for people in England to buy loaves of it.
•It was wiser for English people to buy sugar from
India instead of the Caribbean.
•Slavery was so widespread that it would have been
foolish for the English to oppose it.
•Boycotting was an effective and persuasive tool in
the fight against slavery.

D. Boycotting was an effective and persuasive tool in the fight against slavery.

Explanation:

The authors claim that boycott by the women of New England, that decided not to buy English products and English tea, made London rescind taxes that had imposed on America. So this boycott was a very effective and persuasive tool.

i believe the answer is inference

actually the answer would be c.) jane addams worked hard to improve the lives of less fortunate people.