Answer : Option C) All exercises require a spotter.
Explanation : The local gym has some rules about spotting. The incorrect rule about spotting is that all exercises require a spotter.
This is not required with every exercise, there are several exercise which can be done without the spotter as well. Only heavy weight exercises requires a spotter to assist and support with the weights while lifting or placing down the weights used in particular exercises.
sets are how many times you will do a certain exercise. like bench press you might do three sets by 5 times. so you would do 5 reps thats one set then another 5 reps and thats 2 sets and so on