Answer:
Cube B
DEFINITIONS:
visual models -- models such as networks that could be used in analyzing and solving real problems such as
those concerned with efficiency. The models of 2 and 3-dimensional objects may also assist students’
reasoning about spatial relationships.[1]
[1] National Council of Teachers of Mathematics. (2001). Principles and standards for school mathematics (pp. 232,235). Reston, VA: Author.