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!
B I just took it so it’s b
When implementing a personal plan if you believe you will struggle on it take it step by step or slowly to prevent yourself from doing more then you can
You can socialize at events to gain experience in that area, you can join social media to gain experience(as long as it is a healthy environment) or you can do things with friends.