These answers are correct because they are systems that can meet the company's requirements for delivering a full list of all customer orders throughout their engagement lifetime, providing lifetime engagement tracking and history of the customer, and calculating the lifetime value of customers based on their orders. Salesforce Order Management can manage order lifecycle from capture to fulfillment across multiple channels. Service Cloud can provide a complete view of customer interactions across sales, service, marketing, and commerce. Marketing Cloud can track customer engagement across email, mobile, social, web, and more. CRM Analytics can provide insights into customer lifetime value based on order data and engagement history. Reference: https://help.salesforce.com/s/articleView?id=sf.b2c_commerce_oms_integration.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.b2c_commerce_service_cloud_integration.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.icx_b2c_crosscloudengagement_connectors.htm&language=en_US&type=5 https://www.salesforce.com/products/marketing-cloud/what-is-marketing-cloud/