I believe the answer is D) ATP is too unstable
Medical dictionaries is your answer
Secondhand smoke contains more than 7,000 chemicals. Hundreds are toxic and about 70 can cause cancer. ... Secondhand smoke causes numerous health problems in infants and children, including more frequent and severe asthma attacks, respiratory infections, ear infections, and sudden infant death syndrome (SIDS).
If one day has 24 hours, you'll need 12 tablets a day. There are 7 days so multiply 12 by 7 to get 84 tablets in 7 days.
Many things can trigger an asthma attack such as; cold air, dust mites, pollen, smoke, mold