Answer:
O4, Rather than eating bigger meals, it's better to increase the frequency of eating.
Reasoning:
Let's count down and eliminate some of the possible answers.
O1: Eating one large meal before starting any activity will just give you cramps, and your body will immediately burn off all of the calories that the meal gave your body.
O2: High sugar liquids do not contain very many calories, they just make you really energetic, which makes you burn off even more calories than you need.
O3: You should not consume high protein red meats in large quantities, because high protein meats will just overload you with calories. It is best to stick with a lower amount of food.
O4: I believe O4 is correct because the human body should maintain a certain level of calories to function properly.
All in all, the answer is O4.