If a Firm Wanted to Know Whether the Demand for Its

Multiple Choice

If a firm wanted to know whether the demand for its product was elastic, unit elastic, or inelastic, then the firm could

A) survey competitors and ask them what they think demand elasticity is for the product.
B) talk to its customers.
C) change price a little bit and observe what happens to total revenue.
D) not do anything as there is no way to find an elasticity value.