Step #$1$ of the product or dervice design sequence is Idea Development. Techniques involved include brainstorming, idea development through surveys, benchmarking, reverse engineering and technological scanning of the environment. Which of the following is TRUE?

a$.$ Brainstorming is trying to find out all the things wrong with any idea suggested.

b$.$ Reverse engineering is designing things backwards $-$ considering production needs first, then product engineering needs, then product design needs then customer needs.

c$.$ Benchmarking is studying "best in class" companies and comparing practices & performance.