need help with this, hope an expert can help

Answer:
The author uses facts
Explanation:
He mentions facts like Africa has never hosted a Olympic game and how the United states has hosted 4 times.
Answer: FACT
Explanation: The author is using real facts to write about The Olympic Games. to get this answer i looked up "how long did the 1908 Olympics lasted?" and the answer was 187 days. so they are using facts