The correct answers are: Sales volume from the sales budget and Budgeted change in finished goods inventory.

Since there are no production resource limitations, sales would be the principal budget factor therefore the sales budget must be prepared before the production budget. The budgeted change in finished goods inventory would then indicate the required volume for the production budget. Therefore the correct answer is sales volume from the sales budget and budgeted change in finished goods inventory.

The material purchases would be information derived from the production budget after adjusting for material inventory changes, and the standard direct labour cost per unit would be required for the production costbudget, but not for the production budget, which is expressed in volume terms.