C, you must alert emergency medical professionals.
Answer:
:D
Explanation:
All of your body systems have to work together to keep you healthy. Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide. Your digestive system absorbs water and nutrients from the food you eat.
Bloodletting is the process of removing some parts of the blood and most commonly done for therapeutic reasons. But when bloodletting that is done by leeches, it is definitely not a good technique as this could bring more harm than good to the person.
