What might be the problem?

Cisco AnyConnect Secure Mobility Client has been configured to use IKEv2 for one group of users and SSL for another group. When the administrator configures a new AnyConnect release on the Cisco ASA, the IKEv2 users cannot download it automatically when they connect.

What might be the problem?
A . The XML profile is not configured correctly for the affected users.
B . The new client image does not use the same major release as the current one.
C . Client services are not enabled.
D . Client software updates are not supported with IKEv2.

Answer: C