plz solve Q 19 fastly

Question 19 Not yet answered Marked out of 1.00 Masirah Company sold 7,000 units of its product resulting in $70,000 of sales revenue, $28,000 of variable costs, and $14,000 of fixed costs. If variable costs decrease by $1 per unit the new margin of safety in units is: ca. 7,000 units b. 2,000 units c. 5,000 units d. 4.666 units Oe None of the given answers Flas