Terry and His Co-Workers Are Trying to Develop a Creative

Terry and his co-workers are trying to develop a creative direct mail campaign that will increase sales of their new snowboard.Which of the following strategies is least likely to yield high-quality ideas?

A) holding a brainstorming session with a facilitator trained in group brainstorming
B) forming an interactive group employing electronic brainstorming
C) holding a brainstorming session using Osborn's ground rules for brainstorming
D) creating "nominal groups" and working independently