You have an Exchange Server 2013 Organization.
You need to create a single Transport Rule that prevents users in a group named Group1
from exchanging messages with users in a group named Group2.
Which two options should you use?
Answer: 
Explanation:
I think it should be The Sender is member of… / The Repient is member of…
REFERENCE: https://technet.microsoft.com/en-us/library/jj919235(v=exchg.150).aspx
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I agree with jiminy777, should be:
The Sender is a member of …
The recipient is a member of…
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