下面叙述正确的是______。

A．T=R∩S
B．T=R∪S
C．T=R×S
D．T=R/S

A．Private Sub bigicon_Click() bigicoChecked=False End Sub
B．Pfivate Sub bigicon_Click() MappeabigicoChecked=True End Sub
C．Private Sub bigicon_Click() bigicoChecked=Tree End Sub
D．Private Sub bigicon_Click() appeabigicoChecked=Tree End Sub