Duane, a corporate trainer, is putting together a training program that will help new managers learn how to make decisions based on realistic management scenarios. He wants to make sure trainees experience different scenarios with different challenges and goals. Which of the following would be an ideal instructional method given Duane's learning goals?

A) lectures and role plays
B) lectures and discussions
C) case studies and case incidents
D) discussions and role plays

Case studies and case incidents would be an ideal instructional method for Duane's learning goals because they present trainees with different realistic scenarios that they can analyze and make decisions based on. This method allows trainees to experience a variety of challenges and goals and actively engage in problem-solving. Lectures and discussions, while useful, may not provide as much opportunity for trainees to practice decision-making skills, and role plays alone may not provide a broad enough range of scenarios.