During which of these stages are the aortic and pulmonary valves open?.

Good samaritan law protects civilians when they render aid to someone in need. 

Answer labor;

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.