Which statement accurately reflects sunglasses lens regulations?

Which statement accurately reflects sunglasses lens regulations?

• A. Lenses may be any color, including mirrored.
• B. There are no regulations on sunglasses lenses.
• C. Lenses must be blue or gray with mirrored allowed.
• D. Lenses must be black or brown in color and mirrored lenses are prohibited.

Answer: (D)