According to chapter two in Mr. Kern's book in order to improve aircrew reliability, CRM experts have focused on improving which human faculty or faculties that are fundamental to flying? Group of answer choices c. Focus on only improving the pilots who have a "natural" ability to fly, and not wasting any time on the less "natural" pilot types. b. A pilot's perceptual motor skills and their ability to make decisions. a. A pilot's abilities, their motivations, knowledge and procedural techniques. e. It was decided to focus on B, and C. d. It was decided to focus on A, and B