The controller at Bethune Chemicals asks for your help in sorting out some cost information. You receive the following sheet for the most recent year: \begin{tabular}{|l|} \hline a. Direct materials used \\ \hline b. Direct materials inventory \\ \hline c. Conversion costs \\ \hline d. Work-in-process inventory \\ \hline e. Manufacturing overhead \\ \hline f. Finished goods inventory \\ \hline \end{tabular}