General Supply Owns All the Stock of Playne Pencils

General Supply owns all the stock of Playne Pencils. A Playne employee commits a tort for which the employer is liable. The suit results in a judgment for $1 million against Playne. Playne's assets total $650,000, but General Supply's assets are in the millions. In which of the following situations would the judgment have to be paid by General?

A) General Supply's board of directors is exactly the same as Playne's.
B) The president of General Supply is also the vice president of Playne.
C) Playne's income and General Supply's income is held in one account.
D) General Supply would automatically be liable as the only stockholder.