Find the equation of the circle which passes through the origin and touches the straight line 4x - 3y = 5 at the point (2, 1)

• A.X² + y² - 5y = 0
• B.X² + y² + 5xy - 5y = 0
• C.X² + y² + 2xy + 4y = 0
• D.X² + y² - 7x - 9y + 24 = 0