01 Which tool is most commonly used to apply poster colour?
Answer and explanation
Correct answer: C. Brush
Explanation: The governing concept is selecting the correct tool for a painting medium. A brush holds poster colour and transfers it smoothly onto paper, allowing the artist to make broad strokes or detailed marks according to its size. Therefore, option C is correct. Scissors cut paper, a ruler measures or guides straight lines, and a compass makes circles; none is designed to apply paint. A clean, suitable brush also helps produce an even finish.