Which two statements about RSTP and MSTP BPDUs are true? (Choose two.)

A.
MSTP switches can detect boundary ports when they receive RSTP version 2 BPDUs.

B.
MSTP switches can detect boundary ports when they receive RSTP version 1 BPDUs.

C.
RSTP switches can process MSTP version 3 BPDUs.

D.
When all boundary switches are running RSTP, MST sends only version 0 configuration BPDUs.