Read this excerpt from We’ve Got a Job: The 1963 Children’s March.

"We boiled water, poured [it] into the tub, and then put cold water in the tub. And that's what we took a bath in, because there was no such thing as hot water in the house." On cold mornings, "my mom would get up . . . and make the fire in the coal stove and get back in bed until the room got warm."

What is the tone of the excerpt?

resentful
nostalgic
critical
humorous