Find an Equation of the Line That Is Tangent to the Graph

Multiple Choice

Find an equation of the line that is tangent to the graph of f and parallel to the given line. $f ( x ) = 5 x ^ { 2 } , \quad 20 x - y + 3 = 0$

A) $y = 20 x - 20$
B) $y = 20 x + 20$
C) $y = - 20 x + 20$
D) $y = - 20 x - 20$
E) none of the above