Please give detailed explanations. Thank you.

6. Marrell is employed on the assembly line of a manufacturing company where she assembles a component part for one of the company's products. She is paid S16 per hour for regular time and time and a half for all work in excess of 40 hours per week. Marrell works 50 hours in a given week but is idle for 4 hours during the week due to equipment breakdowns. The allocation of Marrell's wages for the week as between direct labor cost and manufacturing overhead cost would be: Manufacturing Overhead $144 $64 $160 $80 Direct Labor $736 B. $816 C. $640 D. $800 144