With no explanation, chose the best option from "A", "B", "C" or "D". the factors of “functional integration, centralization of management, and economies of scale” as highly relevant in deciding this matter. Mobil Oil, 445 U.S. at 438, 100 S.Ct. at 1232. Accord F.W. Woolworth Company v. Taxation and Revenue Department of New Mexico, 458 U.S. 354, 364, 102 S.Ct. 3128, 3135, 73 L.Ed.2d 819 (1982); see also Exxon Corporation v. Department of Revenue of Wisconsin, 447 U.S. 207, 224-25, 100 S.Ct. 2109, 2120-2 a unitary operation decreases with a decrease in the flow. For instance, a parent’s purchase of a minimal amount of a subsidiary’s output indicates that the parent’s interest in the subsidiary is merely for investment purposes. ASARCO, Inc. v. Idaho State Taxation Commission, 458 U.S. 307, 322-23, 102 S.Ct. 3103, 3112-13, 73 L.Ed.2d 787 (1982) (<HOLDING>). See also Woolworth, 458 U.S. at 371, 102

A: holding that under north carolina law a corporate parent cannot be held liable for the acts of its subsidiary unless the corporate structure is a sham
B: holding stay would not extend to separate legal entities such as corporate affiliates partners in debtor partnerships or to codefendants in pending litigation
C: recognizing separate corporate identity of parent despite evidence that parent was alterego of its subsidiary and was being sued for acts of its subsidiary
D: holding the de minimis flow of products between the parent and its foreign affiliates ranging from 01 to 6 indicated a lack of corporate unity
D.