In the context of the Wagner Act and the rulings of the National Labor Relations Board, which of the following is a key to decisions allowing employee-involvement committees and programs? a. An organization must form communities of interest consisting of employees with widely varying jobs, areas of work, physical locations, and other differences. b. Employee-involvement committees and programs should not deal directly with traditional collective bargaining issues such as wages, hours, and working conditions. c. Members of affinity groups based on race, gender, or religion in an organization must represent the interests of and speak on behalf of other employees. d. An organization should not treat all solicitation alike, and each solicitation attempt must be treated as a separate case and involve a different employee-involvement committee or program