The level of inventory of a manufactured product has increased by 8,379 units during a period. The following data are also available: Variable Fixed Unit manufacturing costs of the period $10 $6 Unit operating expenses of the period $1 $4 What would be the effect on income from operations if absorption costing is used rather than variable costing? Oa. $50,274 increase Ob. $83,790 decrease Oc. $83,790 increase Od. $50,274 decrease