In resistance training, the one-repetition-maximum represents the amount of weight or resistance that can be moved only once. The result of it is used to know how much the weight is capable of lifting for one repetition across a range of exercises. 1RM testings required no special equipment needed, as the lifter is the one to test with free weights. It is also used to identify individual's maximum strength.
Muscular strength is how much you can lift/push/pull, ect. Muscular endurance is how long you can do something with your muscles. Like if you have to put your are straight out in front of you and hold a 25 pound dumbbell. Your will get tired and give out. the more Muscular endurance you have the longer you can do something with your muscles.
The answer is C well let’s hope. Good luck ♂️