There are four blood types: A. B, O, and AB. People with the same blood type can transfuse each other. Only people with type O blood can be transfused to any type of blood, but they can only receive type O blood, but not the other three. Blood type blood, only people with type AB blood can accept blood of any one type, but can only be lost to people with blood type AB, and the other three types of blood cannot accept type AB blood. Zhao is known as type A blood Qian can't accept Zhao's blood, nor can he transfusion to Zhao. Sun can accept Zhao's blood, but can't transfusion to Zhao, Li can't accept Zhao's blood, but can transfusion to Zhao. Based on the above conditions, determine the blood types of Qian, Sun and Li? ['Qian A. Sun B, Li O.', 'Qian B, Sun O, Li AB.', 'Qian AB, Sun O, Li B.', 'Qian B, Sun AB, Li O.']