Answer:
C. push-ups
Step-by-step explanation:
In order to know the answer, it is best to define what "muscular strength" and "endurance" are.
Muscular strength is related to a person's ability to lift a particular object with weight while endurance refers to a person's ability to tolerate by lifting that object without getting drained.
Improving both muscular strength and endurance is possible through "resistance training." This can be done by using equipment like dumbbells, medicine ball, resistance bands and the like. Nevertheless, this can also be done by using your own body weight.
Using your own body weight in exercising is possible such as push-ups. This can enhance both of your muscular strength and endurance.