Find the Partial Sum $a _ { n } = - \frac { n } { 11 }$

Multiple Choice

Find the partial sum.
-Find the sum of the first four terms of the sequence whose general term is $a _ { n } = - \frac { n } { 11 }$ .

A) $\frac { 10 } { 11 }$
B) $- \frac { 10 } { 11 }$
C) $- \frac { 6 } { 11 }$
D) $\frac { 2 } { 11 }$