Which of the following is the main feature of virtual circuit for packet switching:

Group of answer choices

c$)$ If a router on the path crashes, all the packets that go through the router are lost;

d$)$ All of above.

a$)$ Data is packetizied before transmission via a path that is determined before the transmission;

b$)$ Packets travel one after the other, and are guaranteed to arrive in the order they were sent;