The figure shows the volumes of water in three beakers, P, Q. and R. The volume of water in beaker Q is \[\frac{2}{3}\] of the volume of water in R The volume of water in beaker R is \[\frac{1}{2}\] of that of Q. What is the total volume, in ml, of water in the three beakers?

• A.                          6300                                     
• B.                  7000                                     
• C.                  7350                     
• D.                         8400