Preferred Stock Is Considered to Be Non-Cumulative When

Preferred stock is considered to be non-cumulative when:

A) preferred stockholders get their yearly dividend and a percent of what is left over,sharing with common stockholders.
B) preferred stockholders have a right to the current year's dividend,but do not receive holdovers from past years when dividends were not paid.
C) preferred stockholders have a right to a certain dividend every year.
D) None of these answers are correct.