Then answer the following questions using economic thinking (whether or not you agreed with Centers for Disease Control and/or government recommendations/mandates) during the Covid-19 pandemic. (1) Indicate how you would fill in the following chart about externalities associated with Covid-19: 'VirusRelated Circumstance Positive or Negative Externality? Cite a Possible Solution and/or Consequence A. Contagion B. L.A. Traffic/The Environment C. Overall Economic Output D. Shelter-in-Place Orders E. Getting a Covid-19 Vaccine (2) Explain how the choice of wearing or not wearing a mask during the David19 epidemic could create a public good and also "free riders'i (3) Propose a possible corrective tax or subsidy that might be useful for reducing an externalin or free rider problem associated with the pandemic