A cookie cutter machine requires 2 standard controllers and a safety controller. All of these controllers and machine level I/O have been placed on VLAN 104. The safety controller must monitor an emergency stop connected to an I/O adapter on an adjacent machine (VLAN 105).
Which packet type will be used?

A.
UDP Multicast TTL = 1

B.
UDP Multicast TTL = 2

C.
UDP Unicast

D.
TCP Unicast