Richard Writes a Letter to Sarah Authorizing Her to Sell

Multiple Choice

Richard writes a letter to Sarah authorizing her to sell his car and sends a copy of the letter to Saxton, a prospective purchaser.The next day, Richard sends a letter to Sarah revoking her authority, but he fails to notify Saxton .Sarah:

A) is empowered under the doctrine of respondeat superior to negotiate the contract.
B) has apparent authority with respect to Saxton to sell the car.
C) has implied authority to sell the car to Saxton .
D) has actual authority to sell the car to Saxton .