Solve the problem. Find the equation of a circle in standard form that is tangent to the line x = -3 at (-3, 5) and also tangent to the line x = 9.
a) (x + 3)² + (y - 5)² = 25
b) (x - 3)² + (y + 5)² = 25
c) (x + 3)² + (y + 5)² = 25
d) (x - 3)² + (y - 5)² = 25