Table $13-14$

$\backslash$table$[[$Quantity$,,,,,,,],[$of$,$Fixed,Variable,Total,Fixed,Variable,Total,Marginal$],[$Output$,$Cost,Cost,Cost,Cost,Cost,Cost,Cost$],[1,,$$$23,$$$33,,,,],[2,,$$$38,,,,,],[3,,,$$$60,,,,],[4,,$$$54,,,,,],[5,,,$$$80,,,,],[6,,$$$88,,,,,],[7,,$$$113,,,,,],[8,,,$$$155,,,,]]$

Refer to Table $13-14.$ What is the average variable cost of producing $3$ units of output?

a$.$ $$16\mathrm{.}67$

b$.$ $$30$

c$.$ $$35$

d$.$ $$60$