The Demonstration in Which You Perceived the Texture of a Surface

 The demonstration in which you perceived the texture of a surface using your pen or another "tool" showed _____.

A) it is difficult to determine texture without directly touching the surface
B) passive touch is more important than active touch in texture perception
C) texture gradients are more important for vision than cutaneous senses
D) that you can use vibrations to perceive the texture of the surface