Based exclusively on learning.sap.com, SAP Graph provides a unified view of SAP-managed business data, allowing developers to access connected business data through a semantically structured data graph. It does not act as a cache storage or abstract business data specifically for end users. Instead, it serves as a consolidated API layer over distributed data sources.

> ''SAP Graph is a unified API for SAP, using modern open standards like OData v4 ... one connection to your business data ... a single, semantically connected, Business Data Graph.'' learning.sap.com+1

> ''SAP Graph is embedded in API Management to enable creating an out-of-the-box connected data graph of SAP-managed business data directly in SAP Integration Suite.'' learning.sap.com+3learning.sap.com+3architecture.learning.sap.com+3

Thus, the correct answer is:

B . Unified view of SAP-managed business data

Managing APIs