Question:
Choose your answer: Is "Each province had a governor appointed by the khalifah." a good answer to the question "Who appointed the governors in the Umayyad empire?"
Answer:
yes

Question:
Choose your answer: Is "The American people are mostly multi-ethnic descendants of various culturally distinct immigrant groups, many of which have now developed nations." a good answer to the question "Who are descendents of various culturally distinct groups?"
Answer:
yes

Question:
Choose your answer: Is "An executive assistant director manages each branch." a good answer to the question "Who manages each FBI branch?"
Answer:
yes