Whichthreeflow－controlportstatesleadtoenabledlinkflowcontrol?()

A.Receiveport：Enabled，Transmitport：Enabled

B.Receiveport：Enabled，Transmitport：Desired

C.Receiveport：Enabled，Transmitport：Disabled

D.Receiveport：Disabled，Transmitport：Desired

E.Receiveport：Desired，Transmitport：Desired