The circle below is centered at the point (4,1) and has a radius of length 2.
What is its equation?
O A. (x-1)2 + (y - 4)2 = 4
O B. (x+4)2 + (y- 1)2 = 4
O C. (x-4)2 + (y- 1)2 = 4
O D. (x + 1)2 + (y-4)2 =
22