Smiling, shaking someone's hand, and saying "hello" are all ways of:

A. being friendly
B. listening
C. being disrespectful
D. sharing interests with someone

Hyper extension is the extension of a limb/body part beyond its limits

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.