A broker dealer purchases research that will be used to promote an offering of ABC Corp's common stock. Under Rule 138, the broker may use other research about which of the following of ABC's securities, without subjecting that research to offering requirements?
I. Non-convertible debt
II. Preferred convertible stock
III. Non-convertible, non-participating preferred stock
A) I and II only
B) I and III only
C) II and III only
D) I, II and III
Answer: B