You need to complete the mapping of the Team Type column

You are using the Knowledge Discovery feature of the Data Quality Services (DQS) client application
to modify an existing knowledge base. In the mapping configuration, two of the three columns are
mapped to existing domains in the knowledge base. The third column, named Team Type, does not
yet have a domain. You need to complete the mapping of the Team Type column. What should you
do?

A.
Add a column mapping for the Team Type column.

B.
Add a domain for the Team Type column.

C.
Map a composite domain to the source column.

D.
Create a composite domain that includes the Team Type column.

Explanation:
Reference:
http://msdn.microsoft.com/en-us/library/ff877917.aspx
http://msdn.microsoft.com/en-us/library/hh213015.aspx
http://msdn.microsoft.com/en-us/library/gg524799.aspx