[Solved] Use the figure above to answer the following questions. -The anatomical structure identified with the letters "B" and "E" in the figure above is A) the arterial wall. B) the lumen. C) atherosclerotic plaque. D) the capillary wall. E) none of these. Unproductive Activity: Unproductive Activity is an economic term that describes actions or work that do not contribute to the production of goods or services or generate economic value. Productive Activity: Productive activity involves processes or actions that contribute to the production of goods and services, thereby adding economic value. Marginal Social Cost: The additional cost society bears for producing one more unit of a good or service. Pollution Emissions: The release of pollutants into the air, water, or soil that can harm human health, the natural environment, and the economy.