Read the passage.

Knowing that it would be unthinkably rude to laugh, but struggling to suppress the giggles that threatened to break free, Silas fixed his lips into the thinnest of lines. On stage, a bumblebee with an earnest expression continually stopped to straighten her antennae, each time picking up where she had left off and falling further and further behind the other dancers. A tulip lost his footing and went hurtling into a dandelion, and for a moment, Silas was certain a brawl would break out. The tulip and dandelion glared at each other, each refusing to break eye contact as garden gnomes twirled around them. Finally, a butterfly broke into a huge grin and stared, waving at someone in the first row. A caterpillar grabbed him by a wing and dragged him forcefully back into the dance line. That’s when Silas burst into uncontrollable laughter, but he was one of many in the crowd to do so.

Which best describes how a stylistic element contributes to the humorous voice?

Complex, detailed sentences emphasize the series of amusing mishaps.
Vivid word choice emphasizes the audience's suppressed laughter.
Parallel sentence structure emphasizes each student's silly costume.
Informal language emphasizes the students' inability to stay focused.