If $($in an equal footing state$),$ there is $$60,000$ left to be distributed and A has a $$40,000$ claim, B has a $$20,000$ claim and C has a $$10,000$ claim, how much will C receive?

$$ a$.$ $$10,000$ if he was the first to file

$$ b$.$ Nothing $-$a and b will get it all

$$ c$.\frac{1}{7}$ of $$60,000$

d$.$ One$-$half of his claim or $$5,000$