Which of the Following Is a Quality That Applies to Preferred

Which of the following is a quality that applies to preferred shares but not to bonds?

A) Can be redeemable or irredeemable.
B) Have an agreed rate of return that is fixed over the life of the security.
C) Have a rate of return that cannot be written off against taxes.
D) Can be convertible or non-convertible.
E) Can be traded in the secondary securities markets.