The teacher asks the class:

Which type of foods would she eat the night before for dinner,  in order to generate enough energy and strength to last until the end of the race? 

She also asked: What type(s) of macromolecules will her food consist of mostly?

Student 1: Amelia’s dinner should be a grilled cheese sandwich with fries, Caesar salad, and a chocolate milkshake. Her dinner should consist of lipids and carbohydrates because lipids store energy and carbohydrates build muscle.

Student 2: Amelia’s dinner should be a plate of spaghetti with meatballs in red sauce, and lemonade. Her dinner should consist of carbohydrates and proteins because carbohydrates provide a quick source of energy and proteins build and repair muscles.

Student 3: Amelia’s dinner should be a lentil soup with steamed broccoli and a glass of water. Her dinner consists of carbohydrates because she needs to store energy as starch in her body until tomorrow when she does her race. 

Which student do you think is correct? Explain why your choice is correct and why the other two students are not correct.