Simplify Your Answer Should Be in Lowest Terms $$- \frac { 1 } { 20 } - \frac { 4 } { 25 }$$

Multiple Choice

Simplify. Your answer should be in lowest terms.
- $$- \frac { 1 } { 20 } - \frac { 4 } { 25 }$$

A) $- \frac { 9 } { 100 }$

B) $- \frac { 21 } { 100 }$

C) $- \frac { 1 } { 5 }$

D) $- \frac { 1 } { 20 }$