Add or Subtract as Indicated $$\left( 6 x ^ { 2 } + 12 x - 8 \right) + ( 24 x + 8 )$$

Multiple Choice

Add or subtract as indicated. Express the answer as a single polynomial in standard form.
- $$\left( 6 x ^ { 2 } + 12 x - 8 \right) + ( 24 x + 8 )$$

A) $6 x ^ { 2 } + 36 x$
B) $6 x ^ { 2 } + 12 x + 16$
C) $42 x ^ { 3 }$
D) $6 x ^ { 2 } + 36 x - 16$