JT Engineering makes widgets. Widgets first go through the Smelting Department and then go through the Polishing Department. Recent process improvements have enabled JT to increase its output in both departments. How will this impact JT's manufacturing costs for the period? Select answer from the options below It will cause manufacturing costs in both departments to decrease. It will cause manufacturing costs to increase in the Smelting Department and decrease in the Polishing Department. It will cause manufacturing costs to decrease in the Smelting Department and increase in the Polishing Department. It will cause manufacturing costs in both departments to increase