In the diagram, each scale shows the total mass (weight) of the shapes on that scale. What is the mass (weight) of a \Delta?

Answer Choices
A. 3
B. 5
C. 12
D. 6
E. 5.5
In the diagram, each scale shows the total mass (weight) of the shapes on that scale. What is the mass (weight) of a \Delta?
Answer Choices
A. 3
B. 5
C. 12
D. 6
E. 5.5