Rhinoviruses and herpes simplex are just two common viruses out of the other thousands of them that the immune system has to protect the body against.
Answer is b. Thiamine
Vitamins are essential nutrients which are crucial for maintaining optimal health. Vitamin B-complex is a water soluble vitamins which includes thiamine (B1), niacin (B3) riboflavin (B2), folate and iron. These are added during enrichment process of foods like cereal grains and breads, as well as other foods such as meat, poultry, eggs, fish milk, legumes, etc.
The base of an adenine molecule is made of ribose sugar molecules
C SHOULD BE THE CORRECT ANSWER BUT IM NOT SURR