Emergency room health care tends to have a demand curve that is very steeply sloped, while elective surgery does not. why? also, health care insurance and vacation spending tend to have a negative cross price elasticity of demand for many people. why?

A. A list of all hazardous chemicals known to be in the workplace

B.A Safety Data Sheet (SDS) for each hazardous chemical

C.A training plan to communicate hazard information to you and other employees

D.A warning label on each container of a hazardous chemical

E.All options are required under the "Right-to-Know" law