Romanita is offered $500 to climb to the top of the academic center, the tallest building on the university campus. before climbing the 80 foot tower, romanita purchased ropes, boots and a safety harness, as well as other equipment, at a cost of close to $150. after two weeks of preparation and encouragement by the offeror, romanita arrives at the tower. however, just before her feet leave the ground on her ascent up the tower, the offeror withdrew the offer, citing safety concerns. does romanita have a claim for the $500? a. no, because unsafe conditions existed. b. yes, because she was ready, willing, and able to perform her obligations under the contract. c. no, but she has a potential claim for the cost of the climbing equipment. d. yes, because this was a bilateral contract.