When you see a journal entry that leads to a debit of Raw Materials and a credit of Accounts Payable, this is a C. purchase of materials.
As materials are an asset, the raw materials account will be debited to show that raw materials are increasing.
If the Accounts Payable is credited, it means that it is increasing as well because it is a liability. The transaction was therefore done by buying the materials on credit.
In conclusion, option C is correct.
Find out more on raw materials purchases at https://brainly.com/question/26446159.