Using equipment that you haven't been trained on is OK as long as you're careful and read the directions. Correct answer: B You should be always careful when working out with any equipment. However, when the equipment is new and you are not used to it you should pay more attention and follow the instructions.
I will choose all because they all are excersices that can keep your pumping.But i think b because that is a lot of excercise witch is goodfor you.for letter B you will have a total of 50 minutes witch is good.
