Marigold Corp.$\text{'}$s degree of operating leverage is $3\mathrm{.}0.$ Warren Corporation's degree of operating leverage is $9.$ Warren's earnings would go up $($or down$)$ by $$ as much as Marigold's with an equal increase $($or decrease$)$ in sales.

$2\mathrm{.}0$

$12\mathrm{.}0$ times

$6\mathrm{.}0$ times

$3\mathrm{.}0$ times