Michael is a fireman and is on duty when he gets a call to respond to Bill's house that is on fire. Michael leads a team of firemen to the burning house but before he turns on the water hoses, he tells Bill that if he pays him $$1,000,$ Michael will guarantee that he saves his house. Bill doesn't like the offer, but he accepts and agrees to pay the fee. Michael and the other firemen save the house but when he tries to collect the money, Bill refuses to pay. Michael sues Bill on the contract to pay him $$1,000$ for saving Bill's house. What will the Court rule?

Michael wins the case because Bill accepted the offer and there was consideration

Michael wins the case because making the guarantee justified the extra charge

Bill wins the case because Michael is already paid by the City as a fireman

Bill wins the case because Michael had a pre$-$existing duty to put out the fire