Two concentric spherical shells are as shown in figure. Match the following columns

Two concentric spherical shells are as shown in figure. Match the following columns `{:(,"Column-I",,"Column-II"),("(A)","Potential at A","(p)","greater than B"),("(B)","Gravitational field at A","(q)","less than B"),("(C)","As one moves from C to D","(r)","Potential remains constant"),("(D)","As one moves from D to A","(s)","Gravitational field decreases"),(,,"(t)","None"):}`