What is the effect of placing a thick line on the main focus?

Correct answer: The main focus stands out more prominently

Correct answer: B—the main focus stands out more prominently. A line has visual weight, and thickness is one way of increasing that weight. When a thick line is placed around or through the important area of a composition, the stronger mark attracts the eye before weaker marks do. This creates emphasis, meaning that one part is made more noticeable or important than surrounding parts. A is wrong because greater thickness normally increases attention rather than reducing it. C is wrong because emphasis creates a difference in importance; it does not make every part equal. D is wrong because a thick line may influence movement or direction, but it does not automatically destroy them. The effect also depends on placement, contrast, and surrounding marks. Memory cue: thick, dark, or strongly contrasting lines usually say, “Look here first.”