A nurse designs a series of four weekly classes for clients with type 2 diabetes mellitus. Which information should the nurse use as an outcome evaluation for the classes?

D Parking convenience for attendees continued to be a major concern. B Discussion of food exchanges and calories was a well-attended class. A Fasting blood glucose average readings were 20% lower at the end of the classes. C Demonstrating the use of a blood glucose meter was an effective teaching strategy.