Which Statements About PMTUD Is True

Multiple Choice

Which statements about PMTUD is true?

A) GRE tunnels use PMTUD to fragment data packets by default.
B) It is used to prevent fragmentation of packets traveling across a smaller MTU link between
C) It is used to prevent fragmentation of packets at the endpoint of a TCP connection.
D) It is supported by TCP and UDP.
E) It increases the connection's send MSS value to prevent fragmentation.