Churchy Hires Danielle,a Real Estate Broker,to Act as His Agent

Churchy hires Danielle,a real estate broker,to act as his agent to sell his land for $150,000. Oil is discovered beneath the land,causing its market value to in-crease considerably. The agency agreement is likely

A) continued with a proportionate increase in Danielle's sales commission.
B) continued until Danielle tells prospective buyers of the discovery.
C) terminated by act of the parties.
D) terminated by operation of law.