Jamie and scott did sit-ups, push-ups, and curl-ups, and then compared the information to find out who had better

a. endurance, using the calisthenic method

b. strength, using the max 1 rpm method

c. strength, using the absolute method

d. endurance, using the maxing out method

The answer to this question is A -endurance, using the calisthenic method
Calisthenic activities such as running sit-ups, push-ups, and curl-ups are really effective in developing one person's endurance, which will make that person have more stamina and able to keep doing physical activities for prolonged period of time.
If the activities are aimed to test strength, then the most effective method is to use weight-related trainings

 the answer is a. endurance, using the calisthenic method