Lumberyard Company produces only one product: Unit selling price, $$56$Unit variable expenses, $$14$Total fixed expenses, $$42,000$Actual sales for the month of June, $3,000$ units. What is the companys margin of safety in dollars for June?Select an answer and submit. For keyboard navigation, use the up$/$down arrow keys to select an answer.a$$42,000$b$$168,000$c$$56,000$d$$112,000$