Which two commands need to be added to this configuration to allow IP Phones in subnet
10.100.1.0 to register with Cisco Unified Communications Manager Express at address 10.10.1.1?
(Choose two.)
A.
Ip helper address 10.10.1.1 under interface FastEthernet0/0.100
B.
Option 150ip 10.10.1.1 under dhcp pool Phones
C.
Default-router 10.100.1.1 underdhcp pool Phones
D.
Subnet prefix-length 24 underdhcp pool Phones
E.
Encapsulation dot1q 10 native under interface FastEthernet0/0.10