The answer is B. I just took the test and it was correct so large intestines is the answer.
I think the answer is letter b. multivitamins. As what I have read about supplements it include vitamins and minerals and substances which come from a natural source. And also because of this substances it helps the human body maintain its well-being.
Answer:
tar
Explanation:
tar is the reason your lungs go black because it is evaporated into the smoke that you breathe in and is known to be the most known cause of cancer
