Which is the most effective way to vary the length of the sentences in the passage?

Divide sentence 1 into two shorter sentences.

Insert more detail into sentence 8 to lengthen it.

Combine sentences 5, 6, and 7 to create a series.

Rewrite sentence 4 to make it into a subordinate clause.

Combining sentences 5, 6, and 7 to create a series would be the most effective way to vary the length of the sentences in the passage.