Question 4 (2 points) Consumer saving increased significantly during the COVID-19 lockdowns. Those savings are now flowing back into the economy as consumers are spending more on travel, dining, entertainment, non-sweatpant clothing purchases, etc. Consequently, output of goods and services is increasing to meet the increased demand. Which of the following costs will DECREASE as a result of increased production volume? A) Step costs in total B) Fixed costs in total C) Variable costs per unit D) Mixed (semi-variable) costs per unit Question 5 (2 points) Total cost = quantity of resource * resource cost per unit. Therefore, A) reducing total cost requires reducing both the quantity of resource used and the cost per unit of the resource. B) Using a lower cost resource instead of a higher cost resource may reduce total cost, even if more of the lower cost resource is required. C) The best long-term method for controlling cost is to use the resource supplier who offers the best price. D) the impact of price fluctuations on total cost cannot be controlled