Plz write the number of the questions plus the answer letter

Engineers make a design change in Product X Unit level activity Batch level activity Product level activity Customer level activity Facility or Organization Sustaining activity Human resources gave a retirement presentation to the company's employees Unit level activity Batch level activity Product level activity Customer level activity Facility or Organization Sustaining activity 13. The budget or schedule that provides necessary input data for the direct labor budget is the: a. raw materials purchases budget. production budget. schedule of cash collections. cash budget. The master budget process usually begins with the: production budget. b. operating budget. sales budget. cash budget. d. 16. Under a standard cost system, the materials price variances are usually the responsibility of the: production manager. sales manager. purchasing manager. engineering manager. 17. Under a standard cost system, the materials quantity variances are usually the responsibility of the: production manager. b. sales manager. purchasing manager. engineering manager. d