The CEO of Healthsouth Was Trying to Decide Whether to Invest

The CEO of Healthsouth was trying to decide whether to invest a large sum of money in developing a new line of health care services. In an effort to increase the quality of his decision, Mr. Scrushy asked two of his executive vice-presidents to prepare formal arguments in favor of the decision and two other executive vice-presidents to prepare formal arguments against the decision. This decision-making technique is referred to as

A) brainstorming.
B) nominal group technique.
C) Delphi technique.
D) devil's advocacy.
E) dialectical inquiry.