I think the answers are A and D. Good luck I hope this helped.
Scott Joplin was a very popular and successful Ragtime songwriter in the 1800s. He was known as the "King of Ragtime" and composed 44 Ragtime pieces, as well as two ballets, and a Ragtime ballet. The other three artists were popular musicians in the 1950s and 1960s and did not record in the Ragtime era or style.
It was "A) Henry Hudson, John Cabot" who searched for a northwest passage to Asia for England, although it should be noted that John Cabot was slightly more instrumental in this exploration.
The effects of the Black Death were many and varied. Trade suffered for a time, and wars were temporarily abandoned. Many labourers died, which devastated families through lost means of survival and caused personal suffering; landowners who used labourers as tenant farmers were also affected.