Exam MB-210 topic 1 question 55 discussion

A company has three business units. User privileges are set to ensure that users can see only records owned by their own business unit.
If a contact is needed for all business units, one contact record must be created for each business unit. A contact is considered a duplicate if the First Name, Last
Name, Email or Preferred Phone, and Business Unit fields match.
You must ensure that duplicate records are not created for contacts.
You need to create the duplicate detection rules.
Which two filters should you configure? Each correct answer is part of the complete solution.
NOTE: Each correct selection is worth one point.