A. Purchase Document Configuration is the process of customizing the layout and format of purchase documents such as purchase orders, requisitions, and agreements in Oracle Fusion Cloud Procurement. Document Styles, on the other hand, refer to the predefined templates that can be used to format and design the purchase documents.

B. Purchase Document Configuration refers to the functionality provided in Oracle Fusion Cloud Procurement for tracking and managing the status of purchase documents. Document Styles, on the other hand, are the different levels of document approval required for purchase documents.

C. Purchase Document Configuration is the process of defining and assigning approval rules for purchase documents in Oracle Fusion Cloud Procurement. Document Styles, on the other hand, are the different types of purchasing documents that can be created.

D. Purchase Document Configuration is the process of defining and configuring the various accounting and financial options for purchase documents in Oracle Fusion Cloud Procurement. Document Styles, on the other hand, determine the document sequencing and numbering for purchase documents.