In a manufacturing system the three cost elements which flow into work in process are $\_\_\_\_\_\_\_\_\_\_\_\_,\_\_\_\_\_\_\_\_\_\_\_\_,$ and $\_\_\_\_\_\_\_\_\_\_\_\_.$

Group of answer choices

direct labor, direct materials, factory overhead

direct labor, indirect materials, indirect factory overhead

indirect labor, indirect materials, factory overhead

indirect labor, direct materials, factory overhead

none of the above