Im pretty positive the answer is D
hope it helps bro
please mark as brainliest
<span>Stomach. Stomach which connects oesophagus to small intestine is the main part of digestive system where digestion occurs. Protein is a necessary food content for the healthy being of body. From the food proteins are liberated and its chemical digestion starts in the stomach.</span>
This produces medicines that can possibly save the lives of cancer infected patients who otherwise could die.
