In Companies Pursuing a Strategy of Unrelated Diversification

In companies pursuing a strategy of unrelated diversification:

A) the main basis for competitive advantage and improved shareholder value is an increased ability to achieve economies of scope.
B) each business is on its own in trying to build a competitive edge and the consolidated performance of the businesses is likely to be no better than the sum of what the individual businesses could achieve if they were independent.
C) there is a strong chance that the combined competitive advantages of the various businesses will produce a 1 + 1 = 3 performance outcome as opposed to just a 1 + 1 = 2 performance outcome.
D) the main basis for improved shareholder value is strong cross-business financial fits.
E) the main basis for improved shareholder value is an increased ability to achieve economies of scale in the businesses it has entered.