Astatute requires that any pilot who flies passengers for hire must have a commercial pilot's license. an experienced pilot who had only a private pilot's license and not the commercial license required by statute was asked by an attorney to fly her to another city to close a deal. the attorney knew that the pilot did not have a commercial license but the only commercial flight to the city was at an inconvenient time. the pilot flew the attorney through bad weather and landed safely, but because of a minor navigational error he landed at an airport a few miles away from the airport he was heading for. as he was going to start taxiing toward the hangar, another plane struck the aircraft. the student pilot of that plane had ignored the control tower's instructions and gone onto the landing runway instead of the takeoff runway. the attorney was injured in the collision. if the attorney sues the pilot for her injuries, who will prevail? a the pilot, because the attorney knew he lacked a commercial license and voluntarily assumed the risk of flying with him. b the pilot, because the injuries to the attorney were caused by the negligence of the student pilot of the other plane. c the attorney, because the pilot violated a statute designed to prevent persons without commercial licenses from flying passengers for a fee, and such violation imposes liability per se. d the attorney, because the pilot landed at the wrong airport, and but for this mistake the attorney could not have been injured by the other aircraft.