$50 per Order C = $100 per unit Invertory Carry Cost- $1 per unit/period carried 1 2 3 4 5 6 Period Requirements 120 80 100 150 100 200 Using the Lot-fo-lot approach for lot sizing, what size lot would you recommend for receipt in period 1? O a. 80 units. O b. 80 units less the on hand inventory in at the beginning of period 2. O c. 120 units. O d. 120 units less the on hand inventory at the beginning of period one. O e. 200 units