Arnold offered to sell his zero turn lawnmower to Bambi in consideration of $2,500. Bambi thanked him for the offer, said nothing else, but immediately headed to her bank, withdrew $2,500, and headed to Arnolds house with the money. When she arrived, Arnold told her that he sold the mower 30 minutes after they spoke on the phone to someone else. Is Arnold in breach of contract? Why/why not?

		Arnold is in breach because this was an irrevocable offer.
		Arnold is in breach because he had a duty to inform Bambi that he had sold the mower.
		Arnold is not in breach because he revoked the offer by doing an action inconsistent with maintaining it.
		Arnold is not in breach because an offeror has no duty to maintain an offer even after verbal acceptance unless delivery has been made.