Answer:
c. late majority
Step-by-step explanation:
The so-called late majority group is made up of expressively cautious consumers who don't like to take risks and who still have resistance to adopting a new product. They are conservative and only adopt a product when it is already used and approved by the consumer majority.
Brenda and Bart fit into this group as they only want to buy a microwave when other people approve the product and have new options in the market.