Assume that a file is written using write $\text{(fd, buf, K)}$ system call, where $\text{fd}$ is the file descriptor and $\text{K}$ is the number of bytes to be written to the current file offset which is a multiple of the disk block size $\text{D}$. The total number of disk block writes required to be executed before the system call returns
- None of the above
- is at least $\text{K/D}$
- is equal to $\text{K/D}$
- is at most $\text{K/D}$
