What are the enhance functionality?

What are the enhance functionality?
A . Optimize procurement decisions for example, when you have visibility across the enterprise what you purchase from which supplier and at what quantities.
B . Streamline your go to market activities when your product data is consistent across your application landscape.
C . Optimize business analytics and decision making processes when you can base your strategic business decisions on solid master data.
D . Be able to enhance SAP MDG functionality based on predefined content (for example, plant or sales data) or customer-specific extensions

Answer: D