Question $1(1$ point$)$

$3$

A cost that should be ignored when evaluating a project because that cost has already been incurred and cannot be recouped is referred to as a$($n$)$:

A$)$ fixed cost.

$9$

B$)$ variable cost.

$12$

C$)$ sunk cost.

$15$

D$)$ opportunity cost.

nation E$)$ forgotten cost.