John's Organization Has an IAS Configured to Accept Multiple Authentication

Multiple Choice

John's organization has an IAS configured to accept multiple authentication methods. During a negotiation, the network access servers attempt to negotiate a connection using the most secure protocol first, i.e. EAP first. Which of the following entities attempt to negotiate the EAP authentication mechanism?

A) Remote access client and the IAS server
B) RAS server and the IAS server
C) RAS server and the remote access client
D) RADIUS client and the remote access client