Which of the following statements regarding per-platform label space are true?

A separate label is used for each interface that the FEC is advertised on.

It uses fewer label resources than a per-interface label space.

It is typically used when the device has ATM or Frame Relay interfaces.

It uses more label resources than a per-interface label space.

A single label may be assigned to an FEC and used across all interfaces of the same router.

It is only valid when the LDP peers are directly connected over an interface, and the label is only going to be used for traffic sent over that interface.