Q: What system of the body can specifically protect you from pathogens and other things that might make you ill?


Read this paragraph and choose the correct option from the provided answers:

The immune system usually protects you from pathogens and other causes of disease. When the immune system is working properly, it keeps you from getting sick. But the immune system is like any other system of the body. It can break down or develop diseases.

 Choices:

- muscle

- cardiovascular

- digestion

- immune


A:
immune