Which line captures the energy of action in a human figure?

Correct answer: Line of action

The correct answer is A: the line of action. It is a simple guiding line that expresses the main flow, direction, balance, and energy of a human pose. An artist can place it through the body before drawing the head, torso, arms, and legs. If the figure is running, bending, jumping, or turning, the line of action helps the pose feel connected and lively instead of stiff. Option B is wrong because a contour line describes the outer edge of the figure; it may be accurate but does not primarily summarize movement. Option C is wrong because a horizontal line only indicates a horizontal direction and cannot by itself express the complete action. Option D is wrong because hatching uses repeated lines mainly for tone, shadow, or surface indication. The line of action is a planning and expressive device, not necessarily a final visible outline. Memory cue: before drawing the body, draw the path of its movement.