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A public-health sign shows six handwashing actions but provides no sequence cues. What is the most necessary addition?

Answer and explanation

Correct answer: Numbers or directional arrows

The governing concept is sequential visual communication: when actions must be performed in order, the design must explicitly show progression. Numbers or directional arrows tell the viewer where to begin and which panel follows, reducing errors in the procedure. Therefore option D is correct. Texture, a decorative border and extra colour shades may change appearance, but they do not reliably communicate the required order.

Related tags

Visual CommunicationPublic HealthSequenceHandwashingInstructional SignsCommunication Skills IArtificial IntelligenceClass 9 Mcq

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