Simplify the Expression $$6 \sqrt [ 3 ] { 3 } + 11 \sqrt [ 3 ] { 3 }$$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $$6 \sqrt [ 3 ] { 3 } + 11 \sqrt [ 3 ] { 3 }$$

A) $17 \sqrt [ 3 ] { 6 }$
B) $17 \sqrt [ 3 ] { 9 }$
C) $5 \sqrt [ 3 ] { 3 }$
D) $17 \sqrt [ 3 ] { 3 }$