7. Harry orally offered to give Mary a one-hour piano lesson for $25. Which of the following statements is TRUE? (1) If Susan overhears Harry's offer, and Mary is not interested in accepting, Susan can accept. If Mary accepts, and Harry does not honour the contract, Mary cannot successfully sue Harry because the contract was not in writing. (2) (3) (4) If Harry did not specify a time limit for acceptance, Mary can accept at any future date. None of the above louring statements regarding conditions in a contract of purchase and sale are TRUE?