The answer would be the plot I believe, but you put it in the wrong subject.
If revealing your piercings during travel is unacceptable, wear nonmetallic jewelry. Quality metal body jewelry is non-ferromagnetic and will not set off the large walk-through metal detectors. ... You can still wear your metal piercing jewelry when you travel, and the TSA will not ask you to remove them.
Answer:
B
Explanation:
Hands are the primary method of transmission of the common cold. The most frequent means of transmission of the tubercle bacillus is by droplet nuclei. The bacillus is present in the air as a result of coughing, sneezing, and expectoration of sputum by an infected person. The tubercle bacillus is not transmitted by means of contaminated food. Contact with contaminated food or water could cause outbreaks of salmonella, infectious hepatitis, typhoid, or cholera. The tubercle bacillus is not transmitted by eating utensils. Some exogenous microbes can be transmitted via reservoirs such as linens or eating utensils.
The answer is 15 people.
Explanation
You have 45 people and a rate of 33%. 33% is equalivant to 1/3 so you divide 45 by 3 and get 15 people.