The following configuration command was issued on router TK1:ip route 172.16.3.0 255.255.255.0 192.168.2.1.Which of the following statements are true regarding this command?（）
- A The command is used to establish a static route.
- B The default administrative distance is used.
- C The command is used to configure the default route.
- D The subnet mask for the source address is 255.255.255.0
- E The command is used to establish a stub network