What are the network sizing assumptions for a customer scenario with 30 H.323 video endpoints simultaneously joining meetings with an average rate of 512 Kb/s?

What are the network sizing assumptions for a customer scenario with 30 H.323 video endpoints simultaneously joining meetings with an average rate of 512 Kb/s? Select the best response.

A.
30 x 2 Mb/s + 30% network overhead

B.
30 x 384 Kb/s + 10% network overhead

C.
30 x 1 Mb/s + 30% network overhead

D.
30 x 512 Kb/s + 20% network overhead