Which of the Following Is Correct

Multiple Choice

Which of the following is correct?

A) If the demand for a product is inelastic, a change in price will cause total revenue to change in the opposite direction.
B) If the demand for a product is inelastic, a change in price will cause total revenue to change in the same direction.
C) If the demand for a product is inelastic, a change in price may cause total revenue to change in either the opposite or the same direction.
D) The price elasticity coefficient applies to demand, but not to supply.