Lupe is a collegiate soccer player who weighs 157 pounds (71 kg). She works out daily for 2 to 4 hours. Using the chart, estimate her daily caloric expenditure.
a. 3,020-3,030 kcal b. 3,120-3,140 kcal c. 4,210-4,225 kcal d. 6,890-6,910 kcal