Verified Answer :

It is letter B.
Equation of a circle is in the form:
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center of the circle with radius r.

Answer:

The correct option is B.

Step-by-step explanation:

The standard form of the circle is

\((x-h)^2+(y-k)^2=r^2\)

Where, (h,k) is the center of the circle and r is the radius of the circle.

It is given that the center of the circle is (3,1) and the radius of the circle is 2.

The equation of the circle is

\((x-3)^2+(y-1)^2=2^2\)

This equation is represents by option B, therefore option B is correct.