It is already spring, and Omar decides he wants to lose weight before the summer hits. He reads about a diet online that is centered around special milkshakes. Omar figures that he likes milkshakes, so he could easily handle cutting out everything else. Considering the results of most of these diets, which outcome is MOST likely for Omar?

A.
Omar will lose the weight and keep it off.

B.
Omar will lose the weight and gain muscle.

C.
Omar will not lose weight but stay the same.

D.
Omar will gain weight instead of losing it.