In Calculating the Voting Power and Market Value for Two

In calculating the voting power and market value for two or more corporations to file a consolidated tax return, preferred stock is included only if it

A) ​is entitled to vote.
B) ​is not limited and not preferred as to dividends.
C) ​has redemption rights beyond its issue price plus a reasonable redemption or liquidation premium and is convertible into the other class of stock.
D) ​meets any of the above conditions.