Which API type allows for basic CRUD operations on Salesforce objects?

The correct choice is B, as SObject APIs are specifically designed to facilitate basic Create, Read, Update, and Delete (CRUD) operations on Salesforce objects. These APIs enable developers and applications to interact with Salesforce data seamlessly, allowing for a standard interface to manipulate the records of standard and custom objects within the Salesforce platform.

SObject APIs provide functionality to perform operations that are fundamental in any data-driven application, such as inserting new records, retrieving existing records, updating current records, and deleting records. This makes them essential for developers who require direct access to Salesforce data for integration purposes or data management tasks.

Other API types listed do not primarily focus on these generic CRUD operations for Salesforce objects. For instance, Static APIs are not a commonly recognized term in the context of Salesforce, and Configurable APIs typically refer to APIs that can be configured but do not imply CRUD operations as their core function. Service Cloud APIs are more oriented towards functionalities specific to customer service features within Salesforce rather than general data operations. Thus, SObject APIs stand out as the appropriate choice for performing basic CRUD operations on Salesforce objects.