Answer:
A. WHO or World Health Organization
Explanation:
The American Red Cross and The March of Dimes are both nongovernment meaning they are not a public health agency.
The Sickle Cell Disease Association of America
I don't fully understand your question but what i assume you are trying to ask is WHY her mucus is part of the chain of transmission.
JoAnn's mucus still contains active cultures of the cold virus that is affecting JoAnn. thus her mucus would be able to transmit the virus to others.
The answer is myosin, i just took the exammmmm :))