Context: Read the text.
Your body has many systems that perform important tasks to keep you alive and well. For example, your circulatory system is responsible for moving the oxygen, nutrients, and wastes in blood through your body. Your heart, lungs, and blood vessels are all part of your circulatory system. Your lungs are also an important part of your respiratory system, along with your nose and throat. Your respiratory system includes the parts of your body that help you breathe.
Which term matches the picture?
A. respiratory system
B. circulatory system
Select the correct answer from the provided options and reply with the letter associated with it.
Answer: B