Respuesta :
D. Fall. The leaves turn colors during the change to colder weather
The correct answer is D.
According to this passage, the reader may infer that the season in which the action takes place is fall.
This can be concluded from the fact that the day was "crisp", meaning that the weather was chilly, as it normally is during fall; but mainy from the fact that "the leaves were turning gold and red" as it can be appreaciated during this season of the year.