If the shear force acting at every section of a beam is of the same magnitude and of the same direction then it represents a
(a) Simply supported beam with a concentrated load at the centre
(b) Overhang beam having equal overhung at both supports and carrying equal concentrated loads acting in the same direction at the free ends
(c) Cantilever subjected to concentrated load at the free end
(d) Simply supported beam having concentrated loads of equal magnitude and in the same direction acting at equal distances from the supports