You need to offload the reporting workload to the secondary replica when HA/Server01 is the primary replica

Answer B) and C) seem both right, if the Connections want to connect with read-only-intent.

My tendence is that answer b) is right.

To Answer b):

Citation from the word-document on this site:

http://msdn.microsoft.com/en-us/library/jj542414.aspx

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Read-intent-only Option

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This option allows clients to automatically connect to an available readable secondary, and you can use it to prevent read workloads from running on the primary replica.

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To Answer C)

For the primary role, select a new value from the Connections in primary role drop list, as follows:
– Allow all connections
All connections are allowed to the databases in the primary replica. This is the default setting.

– Allow read/write connections
When the Application Intent property is set to ReadWrite or the Application Intent connection property is not set, the connection is allowed. Connections where the Application Intent connection property is set to ReadOnly are not allowed. This can help prevent customers from connecting a read-intent work load to the primary replica by mistake.

B