单选题：The system designs the structure FCB (File Control Block) to man

The system designs the structure FCB (File Control Block) to manage the files. The FCB is created when the system call __________ is executed.@[B](1)
A. close a file
B. create a file
C. read within a file
D. write into a file





A.close a file
B.create a file
C.read within a file
D.write into a file


答案：B