Simplify the Expression $$- 3 \sqrt { 3 } - 9 \sqrt { 75 }$$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$- 3 \sqrt { 3 } - 9 \sqrt { 75 }$$

A) $- 12 \sqrt { 3 }$
B) $48 \sqrt { 3 }$
C) $- 48 \sqrt { 3 }$
D) $- 42 \sqrt { 3 }$