uh I need help with writing a one sentence summary about early west African families, religion, technology, or trade

Trade was a commonly used way to obtain items back in the day, people would give one item in exchange for another, allowing people to have access to items they didn't have before.

Explanation:

Is this good??

b. martin luther king jr. wrote and spoke "i have a dream"

explanation:

i know this 100 percent is correct   b. is the best one. < 3

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.