Your answer is going to be C.
The Indus River valley was a Bronze Age civilization mainly in northwestern regions of South Asia, extending from what is northeast Afghanistan to Pakistan and northwest India.
One exmaple of Jefferson using military force is when he sent The Navy, Marines to defeat Muslim terrorist. Jefferson had written a couple of reports on the 'Barbary pirates' when he was a diplomat and believed their demands kept escalating because the only thing they understood was power," Brian Kilmeade, co-author with Don Yaeger of "Thomas Jefferson and the Tripoli Pirates," told IBD. "Although the U.S. Navy was tiny when he became president, he wasn't intimidated by the pirate fleets and decided the challenge required a military response. The First Barbary War was America's first confrontation with Islamic terrorism, and it has lessons for today."
He was leading the firs expedition to circumnavigate the globe. But he died on the way on 15 April 1521.
C -factory workers
because slaves were freed and indentured servants gained freedom after they finished working for a few years, but factory workers still suffer harsh conditions today so that's my reasoning