Answer:
Late majority
Step-by-step explanation:
Diffusion of innovation is the theory which is explain or seeks to explain why, what and how the rate new ideas as well as the technology spread.
This theory states the 4 main elements which influence the new idea spread, and that are social system, innovation itself, time and communication channels.
The late majority group is the kind of group that is skeptical in nature, as these groups adopt the new ideas after the average member of the social system. So, the B and G were part of late majority as they purchased the microwave when the price decline.