Atwood machine motion | Mechanics homework help

The diagram at right shows an Atwood’s machine composed of a massless frictionless pulley, three identical blocks each of mass m0, and two massless strings. Assume that the blocks are released from rest and that the strings do not stretch. 

       A.  Describe the motion of block C.

       B.  Is the magnitude of the force exerted by String #2 on block B greater than, equal to or less than the force exerted by String #2 on block C? Explain your reasoning.

       C.  Is the tension in String #2 greater than, equal to, or less than the tension in String #1? Explain your reasoning.