More than one option correct-
11.   The gravitational potential changes uniformly from -20 J/kg to -40 J/kg as one moves along X-axis from
x = - 1 m to x = + 1 m. Mark the correct statement about gravitational field intensity  of origin.

(A)  The gravitational field intensity at x = 0 must be equal to 10 N/kg
(B)  The gravitational field intensity at x = 0 may be equal to 10 N/kg
(C)  The gravitational field intensity at x = 0 may be greater than  10 N/kg
(D)  The gravitational field intensity at x = 0 must not be less to than 10 N/kg