Which excerpt from “The Sky Will Not Fall” best shows how the Civil War affected William?

Now, her father was alive physically, but something inside him was different. Once amiable and easy going, he was now sullen, rigid, and impatient.
Outside, twelve-year-old Callie had moved closer to her parents’ bedroom window so that she was well within earshot of the escalating argument.
“What do you think we were doing while you were away, William? There is no woman’s work and no man’s work anymore.”
“Here’s something else I learned. I like it! I like the smell of the dirt when the plow first pulls through it and folds it over.”

The answer choice from “The Sky Will Not Fall” which best elucidates how the Civil War affected William is A. Now, her father was alive physically, but something inside him was different. Once amiable and easy going, he was now sullen, rigid, and impatient.

What is War?

This refers to the armed conflict between two warring factions as they both try to overpower each other and claim victory which leads to loss of life and property.

With this in mind, we can see that from the complete text, the evil effects if the Civil War is still with William as he undergoes personal changes from being a happy and easygoing person to sullen, rigid and impatient.