Which one of the following expressions is represented by the diagram?
A. 3 + (−2) + 1
B. 3 − (−2) + 1
C. 3 + (−5) − 3
D. 3 + (− 5) + 3

Which one of the following expressions is represented by the diagram A 3 2 1 B 3 2 1 C 3 5 3 D 3 5 3 class=