You receive error messages that the /lard file system is full. You check and see that it has a large file called swapfile. Your system has more than enough swap space. You suspect that the file is in use as swap space.
Which sequence of commands confirms that the file is in use as swap space, and helps correct the file system problem?
A.
swap -r /lard/swapfile ; rm /lard/swapfile
B.
swap -l ; swap -d /lard/swapfile ; rm /lard/swapfile
C.
swap -l ; rm /lard/swapfile ; swap -d /lard/swapfile
D.
swap -l ; swap -r /lard/swapfile ; rm /lard/swapfile