Use the Product Rule to Find the Derivative of the Function

Multiple Choice

Use the Product Rule to find the derivative of the function. Select the correct answer.
$$f ( x ) = ( 4 x + 5 ) \left( x ^ { 2 } - 8 \right)$$

A) $8 x$
B) $2 x + 4$
C) $12 x ^ { 2 } + 10 x - 32$
D) $8 x ^ { 2 } - 40$