Express the Sum Using Summation Notation $$\sum _ { k = 3 } ^ { 6 } \frac { - 6 } { k }$$

Multiple Choice

Express the sum using summation notation.
- $$\sum _ { k = 3 } ^ { 6 } \frac { - 6 } { k }$$

A) 277
B) $- \frac { 57 } { 10 }$
C) $\frac { 17 } { 10 }$
D) $- \frac { 80 } { 27 }$