The structural choice that contributes most directly to the suspense is "The author describes all the different ways things could go wrong if the men..."
Suspense is created in a story when readers are left curious and wondering about something. When authors wish to create suspense, they can, for example, reveal information little by little. Another possible form of creating suspense is to describe a strange or mysterious environment or character.
Here, we are analyzing the structural choice in "A Sound of Thunder" that most directly contributes to the creation of suspense. Among the answer choices, the best one is "The author describes all the different ways things could go wrong if the men interfered with the past."
By describing the different ways that things could go wrong, the author makes readers curious, wondering. In other words, suspense is created by keeping readers interested in the story.
With the information above in mind, we can choose option A as the correct answer.
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