A system administrator has created tty2 on a serial port connection to a system. When attempting to verify the connection the following error is observed： # cu -ml tty2 cu： 0835-028 The connection failed. NO DEVICES AVAILABLE. Which of the following should be performed to correct this error？（）

A. Create an entry for tty2 in the /etc/uucp/Devices file
B. Re-enter the command as "cu -dml tty2"
Create an entry for tty2 in the /etc/uucp/Systems file
D. Re-enter the command as "cu -s 9600 -dh -t -l tty2"