2. Joe finds a dog wandering in his yard and he let it into the house. A day later he sees a poster on a tree stating that the owner of the dog, Mary, will pay $100 to anyone who finds and returns the dog to the animal shelter. Joe takes the dog to the shelter. Which of the following is true? A) Joe will be entitled to the reward because his performance of the obligation, in response to the offer, is all that is needed in a unilateral contract. B) Joe did not communicate his acceptance of the offer to Mary and so no contract arose. C) When Joe takes the dog to the shelter, he makes the offer and if the shelter accepts the offer, they are obliged to pay him the $100. D) The poster on the tree is an invitation to do business and must be accepted verbally before a contract is legally binding. E) Even though the poster does not give rise to a contract, the shelter should pay Joe for doing a good