Muscular strength allows you to
a. engage muscles for long periods of time
b. carry a heavy object a long distance
c. exert a lot of force all at one time
d. perform many repetitions of one lift

The answer is C. Muscular strength allows you to exert a lot of force at one time. While muscular endurance would be for you to preform many reps of one lift.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.