When in a Situation Where Visual and Vestibular Information Conflict

When in a situation where visual and vestibular information conflict, such as when the walls of a room move but the infant remains stationary, infant behaviour indicates a particular sensitivity to

A) the visual information, i.e., the infant falls backward.
B) the vestibular information, i.e., the infant falls foreword.
C) neither source of information reliably, i.e., the infant sometimes falls forward; sometimes, backward.
D) both visual and vestibular sources of information, i.e., the infant ends up spinning around in circles.