What are two possible problems with this configuration?

The company is trying to configure Music on Hold for their Cisco Unified Communications Manager Express solution. What are two possible problems with this configuration? (Choose two)
AIOTestKing(config)# telephony-service
AIOTestKing(config-telephony)# moh minuet.au
AIOTestKing(config-telephony)# multicast moh 224.10.16.4 port 2000 route 10.10.29.17 10.10.29.33
AIOTestKing(config-telephony)# exit
AIOTestKing(config)#telephony-service
AIOTestKing(config-telephony)# moh rockin.au
AIOTestKing(config-telephony)# multicast moh 224.10.16.4 port 2001
AIOTestKing(config-telephony)# exit

A.
The second multicast entry does not have a route listed.

B.
The ip-source address command has not been configured

C.
IP phones do not support multicast at 224.x.x.x addresses.

D.
You must disable the use of the first moh file with the no moh command before configuring the second file

E.
Port 2000 is recommended because it is already used for normal RTP media transmissions between IP phones and the router.

F.
Port 2000 is not recommended because it is already used for normal RTP media transmissions between IP phones and the router.