Electrostatics

In the figure, the inner (shaded) region A represents a sphere of radius rA=1, within which the electrostatic charge density varies with the radial distance r from the center as ρA=kr, where k is positive. In the spherical shell B of outer radius rB, the electrostatic charge density varies as ρB=‌

2k

r

. Assume that dimensions are taken care of. All physical quantities are in their SI units.
Which of the following statement(s) is(are) correct?