Answer: A) meditative.
Explanation: The tone of a text or sentence is the author's or speaker's attitude towards the audience, the subject or even the characters of the text. There are many different kinds of tones, like: positive, negative, objective, sad, angry, etc. In the given passage we can see an example of a meditative tone, because the narrator is thinking about how he is a slave of time, and he is wondering if there are other that are too.