What famous Native Hawaiian helped popularize surfing worldwide?

A Rabbit Kekai
B Duke Kahanamoku
C Eddie Aikau

Five-time Olympic swimming medalist Duke Kahanamoku started surfing as a teenager at Waikiki Beach. He surfed on a massive 16-foot longboard that weighed over 100 pounds. From 1915-32 he helped bring surfing from Hawaii to the United States, particularly Southern California.

The correct answer is Duke Kahanamoku.