Use the sentence to answer the question.

Question

Sherman Poppen is credited with inventing the snowboard (though many before him, including children and adults, have claimed to slide seamlessly down a hill while standing on a single flat surface), which allowed for the sport to take hold during the 1970s and 1980s.
How does the writer vary syntax in the sentence?

(1 point)
Responses

by using a comma splice for emphasis
by using a comma splice for emphasis

by separating a related idea using parentheses
by separating a related idea using parentheses

by using a simple sentence structure
by using a simple sentence structure

by separating two dependent clauses with a comma

Answer 1

The writer varies syntax in the sentence by separating a related idea using parentheses.