The centre and the radius of the sphere given by $x^{2}+y^{2}+z^{2}-6x+8y-10z+1=0$ is

Question

$$\begin{array}{1 1}(1)(-3 , 4 , -5 ),49 &(2)(-6 , 8 ,-10 ),1 \\(3)(3 , -4 , 5 ),7&(4)(6 , -8 , 10 ),7\end{array}$$