U.S. Government has gone out on bid for vaccines. The expected demand is 40 million doses per month. Vaccines can be purchased from either Moderna, Inc. or Pfizer Inc. Their price lists are shown in the following table. The fixed cost of ordering is $30,000, and the per dose per year holding percentage is 8%. a. What are the optimal order quantities, and the total annual costs of ordering, purchasing, and holding vaccines? b. Which company should be selected to supply vaccines? Why