A beam simply supported at both the ends of length l and carries two equal unlike couple M at two ends. If the flexural rigidity El is a constant, then the central deflection of the beam is given by
AMl² /4EI
BMl² /16EI
CMl² /64EI
DMl² /8EI
AMl² /4EI
BMl² /16EI
CMl² /64EI
DMl² /8EI