answer them all thanks.

Which of the following is true of materials requisition slips? Which statement is true concerning process cost systems? They trigger a transaction which increases finished goods. The cost of each unit of product is determined after each unit is produced. Oa They indicate receipt of materials from the supplier. Each Work in Process account represents the cost of a different product. b. b. They may indicate indirect materials used in production. Product costs are determined when the products are sold. OC. They are prepared after the goods have been sold. Product costs are summarized on production cost reports. Od. Which of the following is a product-level activity? An advertisement campaign that focuses on the large number of products the company produces. a. Regulatory approval of a new prescription drug. b. Equipment cleaning between batches. OC. Material handling Od