A plane in space contains the point (2,1,−3) and the line given by the Cartesian equations
x+13=y−13=z+6.

Which one of the following equations describes this plane?
a. 3x−4y+3z=−7
b. 3x−2y−3z=13
c. x−y+6z=−17
d. 3x−4y+3z=−25