Answer: As a young man, Anton Chekhov wrote pieces for various publications to earn money to pay for his schooling to become a playwright.
Explanation: A playwright is a writer that writes plays. Anton Chekhov is mostly known by his plays, he is a dramatist or tragedian.
Mansa Musa inherited a kingdom that was already wealthy, but his work in expanding trade made Mali the wealthiest kingdom in Africa. His riches came from mining significant salt and gold deposits in the Mali kingdom. Elephant ivory was another major source of wealth.
During the Civil War, the North had the advantage of having many officers with training and experience.
I think the answer would be D. because all of the above are true.