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Math·Geometry and Trigonometry·Circles

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In the $xy$-plane, an equation of circle $A$ is $(x-2{)}^2+(y-7{)}^2=25$. Circle $B$ has the same center as circle $A$ but has a radius that is twice the radius of circle $A$. Which equation represents circle $B$?

A

$(x-2{)}^2+(y-7{)}^2=50$

B

$(x-2{)}^2+(y-7{)}^2=100$

C

$(x-2{)}^2+(y-7{)}^2=250$

D

$(x-2{)}^2+(y-7{)}^2=625$