4. Which statement is true regarding a bond with BB rating and a bond with AAA rating? I. BB bond should have higher expected return than AAA bond II. AAA bond's risk will be lower than that of BB bond III. With the same face value and coupon rate, BB bond should be sold at a higher price than AAA bond A) I only B) II only C) III only D) I and II only E) 11 and III only