01 A digital poster is readable on a mobile screen but appears blurred on a large display. What may be the cause?
Answer and explanation
Correct answer: A. Low image resolution
Explanation: The governing concept is image resolution, commonly related to the number of pixels available for displaying visual detail. A low-resolution poster may look acceptable when shown small, but enlarging it spreads the same pixels over a larger area and exposes blur or jagged edges. Option A is therefore correct. Text order, colour contrast and a legend can improve meaning, but they do not cause this enlargement blur.