Which of the following is NOT one of the major impairment categories affecting a driver?

• A. Visual impairments
• B. Color blindness
• C. Knowledge deficiencies
• D. Skill deficiencies

Answer: (D)

The idea here is to recognize which limitations directly prevent a driver from perceiving or understanding driving tasks. Visual impairments limit what you can see on the road, affecting hazard detection and response. Color blindness affects the ability to distinguish signals or signs that rely on color cues. Knowledge deficiencies reflect gaps in understanding traffic laws, rules, and safe practices, which can lead to unsafe decisions. Skill deficiencies, while they impact how well someone drives, are not considered a fundamental impairment category because they can often be improved with targeted training and practice rather than representing an inherent limitation. So, skill deficiencies aren’t classified as one of the major impairment categories.