Concept:Foreshortening is a technique used to create the illusion of depth and perspective.Explanation:Perspective in design deals with showing depth, distance, and three-dimensional form on a flat surface.Foreshortening is directly related to perspective because it makes objects appear compressed or shortened to show their correct size and position in space.Balance, repetition, and rhythm are principles of design but do not specifically depend on perspective.Answer:B. Foreshortening