Hello, may you answer the mcq's, Clearly show your steps in solution-based questions and justify the qualitative ones. I will rate a thumbs up:)

3. Which of the following is true? a. The aggregate planning is an input of forecasting. b. In aggregate planning, qualitative strategies can classified into pure and mixed strategies. c. Chase strategy tries to maintain the same level of workforce. d. Pure strategies for aggregate planning do not necessarily provide an optimal solution. e. In aggregate planning, a strategy is always better than another one. 4. The following information relates to a company's aggregate production planning activities: Quarter Demand Forecast 1 31,500 2 5,500 3 4,500 4 13,000 Beginning Workforce = 115 workers Production per Employee = 500 units per quarter Hiring Cost = $750 per worker Firing Cost = $1,500 per worker Inventory Carrying Cost = $10 per unit per quarter If a chase demand strategy is used, the number of workers hired at the start of quarter 4 is: a. O b. 15 c. 17 d. 26 e. 28