The average 8- to 18-year-old spends per day on average in front of a screen doing very little to no physical activity.
a. 0 hours
b. 30 minutes
c. 1 hour
d. 3 hours or more

Young people spend a significant amount of their time in front of their screen - both for school (some of the homeworks are based in information that is available online) and for entertainment (movies, games), and in addition some parts of the social life is also fulfilled online.

True your body needs vitamins such as protein, vitamin d, fish oil etc

The question may be incomplete (there are not the possible answers), but according to the scenario, kaley and her coworkers could be in a humanitarian organization like red cross (in the us or in other countries). it's an organization which organizes health and safety services, disaster services, and blood donations.