Find the best answers to your questions with the help of IDNLearn.com's knowledgeable users. Our platform offers reliable and detailed answers, ensuring you have the information you need.

Which of the following is an example of direct materials cost for an automobile manufacturer?
a. Cost of oil lubricants for factory machinery.
b. Cost of wages of assembly workers.
c. Cost of interior upholstery.
d. Salary of production supervisor.