单选题：A file system uses a two-level indexed allocation scheme. If the

A file system uses a two-level indexed allocation scheme. If the size of each block is 4KB, and the block address is 4 bytes, then the maximum length of a file that this system can support is approximately ____.@[C](1)
A. 1024M
B. 2048M
C. 4096M
D. 8192M





A.1024M
B.2048M
C.4096M
D.8192M


答案：C