Two costs at Watson, Inc. appear below for specific months of operation. Cost Month Amount Units produced Cost 1 June $240,000 80,000 July $270,000 90,000 Cost 2 June $100,000 80,000 July $117,000 90,000 Which types of costs are these? O Cost 1 and Cost 2 are both variable. O Cost 1 and Cost 2 are both mixed. O Cost 1 is mixed and Cost 2 is variable. O Cost 2 is mixed and Cost 1 is variable.