TaxonomyWebTaggingControl control with choices in level 2 terms in managed metadata

This is the structure of my Managed Metadata

And I create my TaxonomyWebTaggingControl  webpart,I want my webpart o have the choices under Term A, so  the choices will be Term A.1, and Term A.2

My code is this and it is referring to "Test"

TaxonomySession taxonomySession = new TaxonomySession(SPContext.Current.Site);
                        TaxonomyWebTaggingControl1.SspId.Add(taxonomySession.TermStores["Managed Metadata Service"].Id);
                        TaxonomyWebTaggingControl1.SSPList = taxonomySession.TermStores["Managed Metadata Service"].Id.ToString();
                        TaxonomyWebTaggingControl1.TermSetId.Add(taxonomySession.TermStores["Managed Metadata Service"].Groups["Testing"].TermSets["Test"].Id);
                        TaxonomyWebTaggingControl1.TermSetList = taxonomySession.TermStores["Managed Metadata Service"].Groups["Testing"].TermSets["Test"].Id.ToString();

I want it to be in "Term A"