Which of the following is not true?

Group of answer choices

a bond that receives a B rating is expected to yield a lower rate of return than a bond with a C rating

When a bond's coupon rate is greater than the market's required rate of return, the bond will sell at a premium

For all bonds, the price of a bond remains the same whether it pays its coupons annually or semiannually

Bond prices and bond yields move in opposite directions