Answer: C) childlike and nostalgic.
Explanation: The tone of a text is the author's or speaker's attitude towards the subject, the audience or even the characters of the text. There are many different kinds of tones, for example: happy, sad, angry, positive, negative, objective, etc. In the given passage the speaker is talking about how things were in the past ("Somehow, it was hotter then.."), he uses descriptions of dogs, mules and men's clothes which gives the excerpt a childlike and nostalgic tone.
