Eve Tells Frank That She Would Like to Buy His

Eve tells Frank that she would like to buy his Great Goodies store. Frank declines, but later decides to sell and sends to Eve, and others, a flyer describing the de?tails. Eve responds with a letter of "acceptance." Eve and Frank have

A) a contract.
B) no contract, because Frank sent the letter to more than one party.
C) no contract, because Frank was only inviting bids.
D) no contract, because the letter was an invitation to negotiate.