The answer is B, a state can make laws that regulate commerce in neighboring states.
Poitier was also the first black actor to win a prestigious international film award. With his unique career, Sidney Poitier helped change many stubborn racial attitudes that had persisted in this country for centuries. He has built the bridges and opened the doors for countless artists in succeeding generations.
Generally speaking, from the 1830s on, people hoping to settle in the Northwest "B-traveled along the Oregon Trail," since this had become a well-established route.
