The sentence that agrees with its subject is "A tornado during the late summer months is typical for many midwestern states."
I believe that pacing refers to the speed at which the speaker pronounces words and phrases, basically the speed at which somebody talks.
a. heroism
The poem repeatedly talks about the bravery of soldiers both alive and those that lost their lives.
The answer is the first three. The speaker has a unique imagination so the answer is going to be directed towards the speaker. The first, second, and third answer directly acknowledges how the author sees things differently than everyone else. The other or last two options say what everyone else can see and is therefor not contributing to his imagination.
