The 'C' Rock

Why does this rock have a 'C' written on it?  Is it labelling placed on it by those who constructed a fake lunar landscape?

This rock is famous amongst those who'd have you believe the Apollo landings were faked.  It is suggested that every rock on the 'faked' landscape was individually labelled.  Starting at 'A'.

We don't have to take this ridiculous idea any further, because it is not a 'C'.    The above image is perhaps  third generation at best.  It's a copy of a copy of the original photograph.    Referring back to the original sees the 'C' disappear.  This is simply because all it is is a tiny hair that contaminated one of the copies along the way. 

This site, while having regrettable theories about alien structures on the moon, has made the effort to take a thorough examination of the 'C' rock.