Which if the following describes quality

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

When a patient becomes angry or embarrassed that they are being asked for payment, what you do to lessen the negative reaction?

Is it normal to have a full mustache at age 14?