$12$

The letters A$,$ B$,$ and C designate three successively larger plant sizes. In the long run the firm should use plant size $"$A$"$ for:

Skipped

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|\}$

$\backslash$hline Output & ATC$-$A & ATC$-$B & ATC$-$C $\backslash \backslash$

$\backslash$hline $10$ & $\backslash (\backslash$$ $6\backslash )$ & $\backslash (\backslash$$ $13\backslash )$ & $\backslash (\backslash$$ $44\backslash )\backslash \backslash$

$\backslash$hline $20$ & $5$ & $9$ & $35\backslash \backslash$

$\backslash$hline $30$ & $4$ & $6$ & $27\backslash \backslash$

$\backslash$hline $40$ & $5$ & $4$ & $20\backslash \backslash$

$\backslash$hline $50$ & $7$ & $3$ & $14\backslash \backslash$

$\backslash$hline $60$ & $10$ & $4$ & $11\backslash \backslash$

$\backslash$hline $70$ & $14$ & $5$ & $8\backslash \backslash$

$\backslash$hline $80$ & $19$ & $7$ & $6\backslash \backslash$

$\backslash$hline $100$ & $25$ & $10$ & $5\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$

Multiple Choice

all possible levels of output.