Question

which person should increase calorie intake due to a lifestyle choice?
an adult who is often sedentary
an athlete
a student getting ready for school exams
an older woman

Explanation:

Athletes engage in high - intensity physical activities which require more energy. Thus, they need to increase calorie intake. Sedentary adults need fewer calories, students preparing for exams don't necessarily need more calories due to that activity alone, and an older woman doesn't have a lifestyle - based reason to increase calories compared to an athlete.

Answer:

an athlete