Which two statements are true regarding vSphere virtual switch uplinks?

Which two statements are true regarding vSphere virtual switch uplinks? (Choose two.)

A.
vSphere virtual switches do not need to be configured with an uplink

B.
vSphere virtual switches can be configured to use the same uplink

C.
vSphere virtual switches must be configured with at least one uplink

D.
Multiple vSphere virtual switches cannot be configured to use the same uplink