Body-anchored frameworks make some perspective shifts cheaper

Correct: B — Favor an inside-the-scene framework whose body-anchored axes make some reference-frame transformations cheaper than others

Bryant & Tversky (1999) and earlier work by Franklin & Tversky compared two transformations: imagining yourself rotating within a scene versus imagining the scene/object rotating around you. Egocentric self-rotations were systematically slower and more error-prone, even though they are formally equivalent. The pattern argues that we represent surroundings within an inside-the-scene 'spatial framework' anchored to the body's natural axes (head/feet, front/back, left/right), making certain reference-frame transformations cheaper than others. The findings shape modern accounts of perspective-taking, navigation strategy, and individual differences in mental rotation.