Question

review the details below.
surfing, popular in pre - colonial hawaii, was used to attract tourists to waikiki beach in the early twentieth century.
the first surfboards were made of solid wood, but in the 1930s, american tom blake developed a cheaper, lighter version that attracted more surfers.
hawaiian surfers george freeth and duke kahanamoku helped popularize the sport in california, australia, and new zealand.
choose the best topic sentence to introduce a paragraph containing these details.
a number of factors influenced the spread of surfing’s popularity in the early twentieth century.
surfing had limited widespread appeal until hawaiian surfers helped popularize the sport.
although once limited to a few areas, surfers have found excellent surfing conditions all over the world.

Explanation:

The provided details cover using surfing to attract tourists, a new surfboard design that drew new surfers, and Hawaiian surfers popularizing the sport globally—all factors that spread surfing's popularity in the early 1900s. The first option encompasses all these points, while the others only focus on a subset of the details (surfer influence only, or global surf conditions not mentioned in the details).

Answer:

A. A number of factors influenced the spread of surfing's popularity in the early twentieth century.