If the equation of the plane passing through the line of intersection of the planes 2x – y + z = 3, 4x– 3y +5z + 9 = 0 and parallel to the line x+1 / -2 = y+3 / 4 = z-2 / 5) is ax + by + cz + 6 = 0. then a + b + c is equal to
(1) 14
(2) 12
(3) 13
(4) 15