The two equal-arm scales shown are balanced.
Which of the following has the same mass as 
?
Answer Choices
A. \blacksquare \blacksquare \blacksquare \blacksquare
B. \blacktriangledown \blacktriangledown \blacktriangledown \blacktriangledown \blacktriangledown \blacktriangledown
C. \blacktriangledown \blacktriangledown \blacktriangledown \blacktriangledown
D. \blacksquare \blacksquare
E. \blacksquare \blacksquare \blacksquare \blacksquare \blacksquare \blacksquare