Answer:
B. Antibiotics
Explanation:
There is currently no cure for cystic fibrosis but there are antibiotics to prevent and treat chest infections.
Answer: Vitamins
Explanation:
Vitamins play a very vital role in the human system, they are considered as essential nutrients which perform hundreds of roles in the body, some of those roles are building the bones, healing wounds, strengthen the immune system, repair damaged cells and conversion of food to energy. It's function spans into 13different category.
The answer is d. both a & c :)