Final answer:
Chocolate milk aids post-workout recovery by providing essential amino acids for muscle repair, rehydration through water, and carbohydrates for energy replenishment.
Therefore, option B is correct.
Step-by-step explanation:
Chocolate milk may be beneficial as a post-workout drink for some individuals because it contains amino acids utilized for repairing and building muscle mass, water to rehydrate the body, and carbohydrates for glycogenesis. Whey protein, found in milk, provides a high level of essential amino acids and branched-chain amino acids (BCAAs) such as leucine, isoleucine, and valine, which are key for muscle recovery. Additionally, chocolate milk contains calcium essential for bone health and muscle function, and often added nutrients such as vitamin D. It's a more natural alternative to protein shakes and supplements, rehydrating the body and replenishing nutrients that are used during intense physical activity.