Which of the following answers are true about TCP and UDP?

a$.$

TCP is a connection oriented and reliable protocol. UDP is connectionless and unreliable. When you send a message using a UDP socket, you do not know if it will get there; it could get lost on the way.$$

b$.$

TCP is ordered. If we send two messages using a TCP socket, one after the other, then TCP will ensure that the first message gets to the destination first. We do not have to worry about data arriving in the wrong order. UDP is not ordered. If we send two messages using a UDP socket, then we do not know what order they will arrive.$$

c$.$

TCP is heavyweight and the UDP is lightweight. UDP is faster and TCP is more reliable.

d$.$

All of the above.

e$.$

None of the above.