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.
Multiple 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.

Explanation:
VMware Virtual Networking Concepts, page 6. Some virtual switches should not connect to a

physical network and thus have no uplink port. If you attempt to assign an uplink port, (previously
assigned to a switch), to a second switch, the uplink will be disconnected from the first switch
before being connected to the second.