which ports and protocols to communicate with an ISE Policy Service Node?

The NAC Agent v4.9.x uses which ports and protocols to communicate with an ISE Policy Service
Node?

A.
tcp/8905, http/80, ftp/21

B.
tcp/8905, http/80, https/443

C.
udp/8905, telnet/23, https/443

D.
udp/8906, http/80, https/443

Explanation: