Describe the set of points in space whose coordinates satisfy the given inequalities or combinations of equations and inequalities. a.1< x^2+y^2+z^2<25 a. Choose the correct answer below. A. The sphere of radius 5 centered at (0,0,0) together with the solid ball of radius 1 centered at (0,0,0) B. The sphere of radius 5 centered at (0,0,0) together with the sphere of radius 1 centered at (0,0,0) C. The solid ball of radius 5 centered at (0,0,0) with the sphere of radius 1 centered at (0,0,0) removed D. The solid ball of radius 5 centered at (0,0,0) with the interior of the solid ball of radius 1 centered at (0,0,0) removed b. Choose the correct answer below. O A. The circle y +z*=25, x=0, together with its interior O B. The solid hemisphere cut from the sphere x?+ y?+7=25 by the yz-plane (the plane x =0) located in the half-space defined by x 0; the hemisphere has radius 5 and is centered at (0,0,0) O C. The circle y?+2=25, x=0 O D. The hollow hemisphere cut from the sphere x?+ y?+2=25 by the yz-plane (the plane x =0) located in the half-space defined by x 0; the hemisphere has radius 5