单选题：Which one of the following key sequences is used to put a nonint

Which one of the following key sequences is used to put a noninteractive text-mode program that is attached to the terminal into the background to allow it to continue processing?@[D](1)
A. Ctrl-B
B. Ctrl-B and then enter the bg command
C. Ctrl-Z
D. Ctrl-Z and then enter the bg command




A.Ctrl-B
B.Ctrl-B and then enter the bg command
C.Ctrl-Z
D.Ctrl-Z and then enter the bg command


答案：D