12) Thomason Corporation has provided the following contribution format income staterent. Assume that the following information is within the relevant range. Sales (1,000 units) Variable expenses Contribution margin Fixed expenses Net operating incorie $40,000 30,000 10,000 7,000 3,000 If the variable cost per unit increases by $1, spending on advertising increases by $2,000, and unit sales increase by 50 units, the net operating income wouls be closest to: A) S450 B) $1,000 C) $2,150 D) S9,450