Question

review the details below.

• surfing, popular in pre - colonial hawaii, was used to attract tourists visiting waikiki beach in the early twentieth century.
• hawaiian surfers george freeth and duke kahanamoku helped establish the sport in california, australia, and new zealand.
• the first surfboards were made of solid wood, but in the 1930s, american tom blake developed a cheaper, lighter version that attracted new surfers.

choose the best topic sentence to introduce a paragraph containing these details.
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.
a number of factors influenced the spread of surfing’s popularity in the early twentieth century.

Explanation:

The details cover how surfing was used to attract tourists (a factor), Hawaiian surfers spreading it (another factor), and Tom Blake's surfboard innovation (a third factor) in the early 20th century. The third option, "A number of factors influenced the spread of surfing’s popularity in the early twentieth century," encompasses these elements as it refers to multiple factors (tourism, surfers' efforts, equipment innovation) contributing to surfing's spread in that time period. The first option focuses only on Hawaiian surfers, and the second is about surfing conditions globally, not the spread of its popularity.

Answer:

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