Find the Equation of a Circle Satisfying the Given Conditions $(0,-7)$

Multiple Choice

Find the equation of a circle satisfying the given conditions.
-Center: $(0,-7)$ ; radius: $\sqrt{7}$

A) $x^{2}+(y-7) ^{2}=7$
B) $(x+7) ^{2}+y^{2}=49$
C) $x^{2}+(y+7) ^{2}=7$
D) $(x-7) ^{2}+y^{2}=49$