Hey, I am positive that your answer is...
A) Short course of antiviral drugs and antibiotics
Answer:B
Explanation:
Codominant is when neither allele is recessive so they are both expressed in the phenotype
Answer: C) They can contain contaminants that can enter the air during storms or high winds.
Explanation: A is wrong because I got it wrong (Sorry, can't give much explanation there).
B is wrong because water contamination does not directly relate to respiratory health.
D is wrong because fertilizers can impact respiratory health (Explanation seems lack-luster, but I feel like this is common sense).
Hope this helps :)
