单选题When a user tries to log into the system, the following error occurs: "3004-004. You must "exec" login from the lowest login Shell". Which of the following procedures should be performed next to determine the cause of the problem?（）AReboot the system.
题目
单选题
When a user tries to log into the system, the following error occurs: "3004-004. You must "exec" login from the lowest login Shell". Which of the following procedures should be performed next to determine the cause of the problem?（）
A
Reboot the system.
B
Increase the number of ptys.
C
Increase number of licenses.
D
Run df -k to check for full filesystems.