Which multicast address range is allocated for use on the Mbone?

Which multicast address range is allocated for use on the Mbone?

A.
224.0.0.1- 224.0.0.255

B.
224.0.1.0- 238.255.255.255

C.
224.0.0.0- 239.255.255.255

D.
239.0.0.0- 239.255.255.255