Answer:
The answer is the Immune system (a).
Explanation:
The immune system consists of agents that help your body fight against pathogens and other invading substances. It has your white blood cells, enzymes, mucus, hydrochloric acid (in your stomach), and even your saliva. All these substances help make sure your body is rid of anything that may bring harm to you!
The answer is FAT for your question
The answer to your answer is B because who cares what your freinds think,from a personal experience I shouldn't but I do,but still I shouldn't and neither should you or anyone else for that matter.
The answer is either B or C I think the answer is B
Protein is broken down for energy when carbohydrates are scarce