A) The Contact Data Portability report in Marketing Cloud is a feature that allows creating a report containing subscriber data related to a single contact, such as email address, name, phone number, preferences, etc. This report can be used to provide customers access to their own data or comply with data privacy regulations, such as GDPR or CCPA. B. The Customer Data Snapshots report in Commerce Cloud is a feature that allows creating a report containing purchaser data related to a single customer, such as order history, payment methods, addresses, etc. This report can be used to provide customers access to their own data or comply with data privacy regulations, such as GDPR or CCPA. Reference: https://help.salesforce.com/s/articleView?id=sf.mc_overview_contact_data_portability.htm&type=5 https://documentation.b2c.commercecloud.salesforce.com/DOC1/topic/com.demandware.dochelp/content/b2c_commerce/topics/admin/b2c_customer_data_snapshots.html