Drug abuse is the number one ethical problem in the workplace, according to a survey of employees.

A downward-sloping demand curve can be derived for a normal product by increasing its price in the consumer-behavior model and noting

A) the increase in the utility-maximizing quantity of that product demanded.
B) the decrease in the utility-maximizing quantity of that product demanded.
C) a substitution effect that encourages more consumption of that product.
D) an income effect that encourages more consumption of that product.