Answer:
D.
Explanation:
Out of all the answers provided within the question we can say that the one answer that is not a direct material is Lubricant for a ball-bearing joint for a large crane. This is because direct material's are materials used when manufacturing a product and that are specific to the product that is produced. Seeing as how lubricant is not specific to the production of a large crane and is used in just about every machinery, then it is not considered as a direct material.
