I believe the answer is D. Before, because Also and During would make it grammatically incorrect and if you consider the fact that they were able to, "see and hear the explosion," then Eventually would not fit because that makes it sound like it took a bit of time.
Answer:
Walk toward First Street
Explanation:
Alliterations have words that begin with the same letter in them.
Griping, Grief
Faint, Fear
Dank, Dew, Dry
The third choice is the only one without any alliteration in it.
The dress code that's expected- Apex
D he tells them not to be silly children