If you are suing a parent corporation for its subsidiary's actions, who must the demand be made to and what test

a) The demand must be made to the subsidiary's board of directors, and the business judgment rule applies
b) The demand must be made to the parent corporation's board of directors, and the entire fairness test applies
c) The demand must be made to the parent corporation's board of directors, and the Aronson test applies
d) The demand must be made to the subsidiary's board of directors, and the entire fairness test applies