What can the administrator do to resolve the issue?

Administrators have noticed that all iOS devices are not checking into Workspace ONE in their SaaS environment. They are also unable to send any push notifications to the iOS devices. However, Android and Windows devices are working fine.

What can the administrator do to resolve the issue?
A . Make sure that the Rest API and SOAP API certificate are valid.
B . Make sure that all SSL certificates used for the Workspace ONE environment are valid.
C . Make sure that the APNs certificate is valid and not expired.
D . Make sure that the Email Notification Service v2 is configured.

Answer: B

Explanation:

Reference: https://kb.vmware.com/s/article/2960930