Jack Was Fired by Bob but Decided to Try to Win

Multiple Choice

Jack was fired by Bob but decided to try to win back his job as agent by getting a big new contract. He approached Sharon, a new client, and made a pitch to sell Bob's product. Sharon agreed to buy 100. Jack tells Bob. What are the legal consequences?

A) Bob has to hire Jack again and then make the deal.
B) Bob would have to ratify the deal to get the benefit of the contract.
C) Bob would have to negotiate the deal with Sharon himself.
D) Jack would forfeit his commission if Bob took the contract.