You have an Exchange Server 2013 organization.
A user named User1 has a mailbox that is enabled for Unified Messaging (UM).
User1 has nine call answering rules.
When User1 attempts to create a new call answering rule,
the user receives an error message.
You need to identify what prevents User1 from creating a call answering rule.
What should you identify?
A. The Mailbox of User1 has the CallAnsweringRulesEnabled parameter set to $false
B. The UMMailbox Policy of User1 has the AllowCallAnsweringRules parameter set to $false.
C. User1 exceeds the Inbox Rules Storage Quota.
D. User1 has the Maximum Number of Call Answering Rules allowed.
Answer: D