First you need to expand sdc2 into the free space, then you can move your home partition ( sdc6 ) to the right, then expand your root ( sdc5 ) into the free space. This requires that both the home and root partition be unmounted at the time, which means you need to boot from a livecd to do this. You should of course, make a backup first, since a power failure or other problem in the process will destroy your data.
↧