People had an easier way to transport waste outdoors from inside facilities.
Hope this helps
C? I believe so. :) have a nice day, dear.
custom made jewelry is always made one at a time so that's not it novels are written by one person and while they are mass distributed if the writer were to die no more books would be written paintings can't be made in mass production because only one person paints them so he only answer that will work is computers which enough are made that almost everyone owns one
Answer:
I believe it it is c but I could be wrong hope it helps :)