What Is the Minimum Value Of $y = ( x - 6 ) e ^ { x } + 3 x ^ { 2 } - 30 x + 231.41 ?$

What is the minimum value of $y = ( x - 6 ) e ^ { x } + 3 x ^ { 2 } - 30 x + 231.41 ?$ Consider only positive $x$ -values.

A) $y = 8$
B) $y = - 19$
C) $y = 5$
D) There is no solution.