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A sign communicates two messages only through colour differences. How can it be made more accessible for a person with colour-vision difficulty?

Answer and explanation

Correct answer: By adding distinct shapes or words along with colours

The governing concept is accessible and redundant visual communication: important information should not depend on colour alone. Adding distinct shapes, patterns, labels, or words supplies another cue, allowing the message to be understood even when colours look similar. Therefore, option A is correct. Making colours lighter or reducing the sign can worsen visibility, while removing text removes useful information.

Related tags

Visual CommunicationAccessibilityColour VisionCommunication Skills IArtificial IntelligenceClass 9 Mcq

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