Use the sentence to answer the 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 separating two dependent clauses with a comma
by separating two dependent clauses with a comma

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

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

by using a simple sentence structure

1 answer

The writer varies syntax in the sentence by separating a related idea using parentheses. This is seen in the inclusion of the clause that discusses those who claimed to slide down a hill while standing on a flat surface, which provides additional context without disrupting the main flow of the sentence.