GAUSS8 2020 Problem 18

Past Contests GAUSS8 GAUSS (GR. 8) - 2020
1

Three different views of the same cube are shown. The symbol on the face opposite
gauss8 2020 18 is

Image

Answer Choices
A. +
B. \blacksquare
C. \boldsymbol{\boxtimes}
D. \square
E. \bigcirc