These diagrams show pendulums formed by a mass at
the end of a massless string. Each of them is shown at the
angle of maximum deflection from equilibrium. This angle is the same
in all cases. Rank these pendulums with respect to their speed at the
bottom of the swing.
A. (CF) A D (BE)    B. B (CD) E (AF)    C. C F (BD) A E
D. All same