Reports. Specific Tags for multiple tagged items. (Q Mac)

Im trying to build a report for items that may be multiple tagged.
The Tags Are eg;

A, B, C, D.

My problem is if I specify Tag A, the report then shows sections for Tag A, then Tag A+B, A+C, A+D, A+B+C, A+B+D, A+C+D and A+B+C+D……

How do get a report just with Tag A all in one block?