01 What is the benefit of using an image of clean hands on a health poster?
Answer and explanation
Correct answer: A. The message is understood quickly
Explanation: The governing concept is visual clarity: a relevant image helps viewers understand the intended message quickly. A clean-hands image immediately supports a health message about hygiene and handwashing, especially when viewers scan a poster briefly. It does not enlarge the poster, remove the need for all written details, or explain treatment for every disease. Therefore, option A is correct.