In general, we are used to thinking that exercise is the key factor or even the most important factor in weight loss. However, some experts point out that although exercise is very good for health, it actually does not help much in weight loss. In fact, the status of opening a leg and holding a mouth is not equal, and holding a mouth is actually more important than opening a leg. Which of the following, if true, would best support the views of these experts? ['Of the total calories consumed by individuals, only a very small part of the calories consumed by exercise.', 'In general, we always move more and eat more, move less and eat less.', 'Many people will slow down due to fatigue after exercise and reduce calorie expenditure.', 'Just eating a small piece of pizza can produce the equivalent of an hour of exercise.']