Solve the Equation $\frac { 1 } { 3 } x = - 10$

Solve the equation: $\frac { 1 } { 3 } x = - 10$ .

A) $x = - \frac { 3 } { 10 }$
B) $x = - 30$
C) $x = - \frac { 10 } { 3 }$
D) $x = - 13$