Use a Graphing Utility to Find the Sum of the Geometric

Multiple Choice

Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.
- $$\sum _ { k = 1 } ^ { 12 } \frac { 1 } { 7 } \cdot ( - 2 ) ^ { \mathrm { k } - 1 }$$

A) $- 195$
B) -195.86
C) $- 194$
D) $- 195.29$