A Diversified Company Has a Parenting Advantage When

A diversified company has a parenting advantage when

A) it is more able than other companies to boost the combined performance of its individual businesses through high-level guidance, general oversight, and other corporate-level contributions.
B) it is more able than other companies to create an extensive collaborative effort among different specialties among different geographic locations.
C) it results in supporting short-term economic shareholder value.
D) managing a set of fundamentally similar businesses operations in fundamentally similar industries and inert environments.
E) All of these.