Clients using cisco-leap and eap-fast authentication are having no problems logging on to The wireless network， but clients using peap are failing to log on.
Which situation would result in this type of problem？（）

A.3
B.6
C.4
D.1

A.create a more effective sales strategy for partners.
B.reinforce customer confidence in partners selling products.
C.provide a consistent， repeatable， and proven method to ensure the network solution that is deployed delivers upon the customer’s goals for reliability and availability.
D.maximize the number of services required to support advanced technologies.
E.more clearly define the roles of account managers， systems engineers， and field engineers.

A.project kickoff，staging，systems acceptance testing，ongoing support handoff meeting
B.wlan change management，security administration，technology assessment，operations plan
C.security assessment，operations assessment，supplier management
D.operations readiness assessment，systems requirements validation，planning project kickoff，service assurance