单选题：By default, each process can at most open 256 files (including t
By default, each process can at most open 256 files (including the standard input/output and error). This is because:@[C](1)
A. System does not have enough memory to maintain too many inodes
B. fs_struct sets the maximal number of files that can be opened
C. file_struct defines the size of file array to be 256
D. We can only use one byte to store the file descriptor number
A.System does not have enough memory to maintain too many inodes
B.fs_struct sets the maximal number of files that can be opened
C.file_struct defines the size of file array to be 256
D.We can only use one byte to store the file descriptor number
答案：C
A. System does not have enough memory to maintain too many inodes
B. fs_struct sets the maximal number of files that can be opened
C. file_struct defines the size of file array to be 256
D. We can only use one byte to store the file descriptor number
A.System does not have enough memory to maintain too many inodes
B.fs_struct sets the maximal number of files that can be opened
C.file_struct defines the size of file array to be 256
D.We can only use one byte to store the file descriptor number
答案：C