单选题：As for the virtual memory area(VMA), which statement is incorrec

As for the virtual memory area(VMA), which statement is incorrect? @[B](1)
A. A user process has several VMAs
B. A kernel thread has no VMAs
C. the brk system call may add VMAs to a process
D. The kernel itself also has a list of VMAs



A.A user process has several VMAs
B.A kernel thread has no VMAs
C.the brk system call may add VMAs to a process
D.The kernel itself also has a list of VMAs


答案：B