Sellers of passive exercise devices multiple choice provide fast, easy, and effective weight-loss alternatives to exercise. are revolutionizing the fitness industry. people tone their muscles faster. people lose weight. try to convince people that there is an effortless way to exercise.

Try to convince people that there is an effortless way to exercise

Explanation:

This are devices that move the body while the person is relaxed, devices might be electrical "with the aim that a person can benefit the gain from the gain of working without working out.

the answer is either c or d i think its d

the telephone is the answer