For the function y = ax³ + bx² + 2, where and y (1) = 9 and y(1) = 12 , the equation of the line that is tangent to the function at its inflection point is:

a. 6x + y = -6
b. 3x + y = 1
c. 3x - y = 1
d. 2x - y =-10
e. 4x - y =-1