PLEASE HELP!!!
Expand!!!
A. 0 + 1 + 2 + 3 + 4+ 5
B.(-1) + (-2) + (-3) + (-4) + (-5) + (-6)
C. 0 + 1 + 2 + 3 + 4 + 5 + 6
D. 1 + 2 + 3 + 4 + 5 + 6
![PLEASE HELP ExpandA 0 1 2 3 4 5B1 2 3 4 5 6C 0 1 2 3 4 5 6D 1 2 3 4 5 6 class=](https://us-static.z-dn.net/files/daf/ed6aa08ca894df2c9567f94000871811.jpg)