Option A is correct because Salesforce B2C Commerce to Service Cloud Connector is an integration solution that allows service agents to see order history from a B2C Commerce system. Salesforce B2C Commerce to Service CloudConnector is a pre-built package that integrates Salesforce B2C Commerce and Service Cloud using REST APIs and Platform Events. It enables service agents to view, edit, cancel, and refund orders from B2C Commerce within the Service Cloud console. It also supports features such as customer verification, order search, order details, and order history.

Option B is incorrect because a REST API offered by Commerce Platform is not an integration solution that allows service agents to see order history from a B2CCommerce system. A REST API offered by Commerce Platform is a set of web services that expose the functionality and data of the Commerce Platform to external applications. It can be used to create, update, delete, or query resources such as products, catalogs, customers, or orders. However, a REST API offered by Commerce Platform is not a complete integration solution, as it requires additional development, configuration, and maintenance to connect with Service Cloud and display the order history in the Service Cloud console.

Option C is incorrect because Mulesoft Anypoint Platform is not an integration solution that allows service agents to see order history from a B2C Commerce system. Mulesoft Anypoint Platform is a platform that enables developers to build, manage, and monitor integrations and APIs across various systems and applications. It can be used to connect Salesforce B2C Commerce and Service Cloud using various connectors, protocols, and transformations. However, Mulesoft Anypoint Platform is not apre-built integration solution, as it requires additional development, configuration, and maintenance to connect with Service Cloud and display the order history in the Service Cloud console.

Option D is incorrect because a REST API offered by SalesforcePlatform is not an integration solution that allows service agents to see order history from a B2C Commerce system. A REST API offered by Salesforce Platform is a set of web services that expose the functionality and data of the Salesforce Platform to external applications. It can be used to create, update, delete, or query resources such as objects, records, metadata, or Apex classes. However, a REST API offered by Salesforce Platform is not a complete integration solution, as it requires additional development, configuration, and maintenance to connect with B2C Commerce and display the order history in the Service Cloud console.

References: Salesforce B2C Commerce to Service Cloud Connector : Salesforce B2C Commerce to Service Cloud Connector Implementation Guide : Commerce API Explorer : MuleSoft | Integration Platform for Connecting SaaS and Enterprise Applications : REST API Developer Guide