Answer:
A. Center (4,3); Radius = 5 units
Explanation:
The equation of a circle can be written in the form
(x-h)^2 + (y - k)^2 = r^2
where (h,k) is the center and r is the radius
(x-4)^2 + (y - 3)^2 = 25
(x-4)^2 + (y - 3)^2 = 5^2
The center is (4,3) and the radius is 5