单选题：Some file systems allow disk storage to be allocated at differen

Some file systems allow disk storage to be allocated at different levels of granularity. For example, a file system could allocate 4KB of disk space as a single block, or as four 1024-byte blocks. Do you think the example is_____.@[C](1)
A. Absolutely nonsense
B. Probably true, but it is only for academic research
C. Practical, because there exists a popular file system using the scheme
D. Absolutely true, all file systems use the scheme




A.Absolutely nonsense
B.Probably true, but it is only for academic research
C.Practical, because there exists a popular file system using the scheme
D.Absolutely true, all file systems use the scheme


答案：C