read the paragraph. then, add the best topic ...
read the paragraph. then, add the best topic sentence. riding the ocean waves was an ancient practice in hawaii, but it was not well known in most other places. kahanamoku was a hawaiian swimmer and surfer. in 1914 he traveled to australia, new zealand, and the east coast of the united states to teach people about surfing. large crowds came to watch him ride the waves. this helped surfing spread to other places. duke kahanamoku helped make surfing a popular sport. duke kahanamoku taught people in australia about surfing. when he wasnt surfing, duke kahanamoku worked as an actor. people around the world enjoy a wide range of water sports.
Answer
# Brief Explanations:
The paragraph focuses on how Kahanamoku traveled to different places to teach surfing and helped it spread. The best topic - sentence should summarize this main idea. The first option does this as it emphasizes his role in making surfing popular. The second option is too specific to just Australia. The third option is about his acting work which is not relevant to the main idea of surfing spreading. The fourth option is too general about water - sports in general rather than focusing on surfing and Kahanamoku's role.
# Answer:
Duke Kahanamoku helped make surfing a popular sport.