The fixed and variable costs for three potential manufacturing plant sites for a rattan chair weaver are shown: Site Fixed Cost Per Year Variable Cost per Unit 1 $600 $12.00 2 3 $1,100 $7.00 $2,000 $3.00 After rounding to the nearest whole number, site 2 is best between After rounding to the nearest whole number, site 3 is best above units. a) After rounding to the nearest whole number, site 1 is best below and units. units. b) If the demand is 215 units, then the best location for the potential manufacturing plant is