On the roads, why is a colour blind person a dangerous driver?

The lens of their eyes are opaque.

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They cannot distinguish between colours.

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They can't see in the dark.

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They can't see nearby objects clearly.

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Solution

The correct option is B
They cannot distinguish between colours.

The retina contains cone cells which can detect red, green and blue colours. Colour blindness is caused due to the defect of cone cells which detect red and green colours. Persons with this defect cannot distinguish between green and red colours. Hence they are dangerous drivers.

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