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.
Activated when they recognize small components of antigens
Elbow is to wrist
hope this helped u
Answer:
B
Explanation:
He spends most time on his computer and in front of a screen which effects his health ,would give him a migrain and more
so he needs to strengthen his physical activity .
