单选题：Which of the following is not a probable invocation flow?

Which of the following is not a probable invocation flow?@[D](1)
A. sys_fork -> do_fork
B. sys_clone -> do_fork
C. sys_vfork -> do_fork
D. sys_clone -> sys_fork



A.sys_fork -> do_fork
B.sys_clone -> do_fork
C.sys_vfork -> do_fork
D.sys_clone -> sys_fork


答案：D