7. Sal hires Antoinette to sell his house and gives her power of attorney that authorizes her to do, but the power of attorney says nothing about price. Sal tells Antoinette to take nothing less than $200,000. Harry offers Antoinette $195,000 for the house, and Antoinette accepts. If Sal is bound by the sale contract, the most likely reason is __________ authority.

A. actual

B. express

C. implied

D. apparent