Ring. Incorporated's income statement for the most recent month is given below. Sales Variable expenses. Contribution margin Traceable fixed expenses Segment margin..... Common fised expenses Net operating income Total $600,000 384.000 216,000 152.000 64,000 34.000 $ 30,000 Store P $200,000 144,000 56,000 42.000 $ 14,000 Store Q $400,000 240,000 160,000 110.000 $ 50,000 .. .. ******** For each of the following questions, refer back to the original data. If sales in Store Q increase by $30,000 as a result of a $7,000 increase in traceable fixed costs: Store Q's contribution margin should increase by $18,000 Store Q's segment margin should increase by $12,000 Store Q's contribution margin should increase by $11,000 Store Q's segment margin should increase by $5,000