Which statement about Dynamic ARP Inspection is true ?
A. In a typical network, you make all ports as trusted expect for the ports connection to switches , which are untrusted
B. DAI associates a trust state with each switch
C. DAI determines the validity of an ARP packet based on valid IP to MAC address binding from the DHCP snooping database
D. DAI intercepts all ARP requests and responses on trusted ports only
E. DAI cannot drop invalid ARP packets
