C. The way he feels about visiting his abuelo has changed
Explanation:
" I look at my watch and the hour is up, to the minute. I<u> can’t help but think that my abuelo has been timing me.</u> It cracks me up. <u>I walk slowly down the hall toward the exit sign. I want my mother to have to wait a little. I don’t want her to think that I’m in a hurry or anything."</u>