T or F for all

1.The FIFO method of computing equivalent units focuses on production activity in the current period only.

2.A production department is an organizational unit that has the responsibility for the complete processing of one particular product.

3.In process costing, the classification of materials as direct or indirect depends on whether or not they are clearly linked with a specific process or department.

4.As production volume increases, fixed cost per unit of output remains constant.