A surgeon on that specializes in the thoracic cavity. Mainly heart and lung surgeries
That would be 'B'
<span>Unstructured play time teaches kids to win and lose gracefully</span>
The gallbladder stores bile which is needed for the digestion of fats in food.
If you wish to lower your risk of heart disease, then you should make sure to be physically active, quit smoking if you do, eat healthy foods, lower blood pressure, etc.