Read the following article and answer the question by choosing from the options.

Rev up Your Metabolism The fastest and most efficient way to weight loss , burn fat faster , and develop lifelong health and fitness is to add lean muscle to your body through resistance training - period . You want life changing results in the quickest possible time ? Get stronger and build some muscle . When you add lean muscle to your body you ll be literally turning your body into a fat burning machine !

What may be a fact about this situation ?
Select from:
I. They are trying to recruit people to their weight loss program ..
II. They are promoting a weight loss product ..
III. They are promoting a weight loss scheme to make profit ..
IV. They are selling a weight loss product in a store .....A:
I.