Explanation
Split views are a feature that allows users to view records as a split list on object home pages in Lightning Experience apps that use console navigation. Split views show records in two panes: a list view pane on the left and a record detail pane on the right. Users can switch between different list views and records without losing context or scrolling. However, split views are only available on standard objects such as accounts, contacts, leads, opportunities, cases, etc., and not on custom objects such as shipments. References:
https://help.salesforce.com/s/articleView?id=sf.lex_split_view.htm&type=5

Explanation
Data Export Wizard allows administrators to export data from Salesforce in CSV files. It can be used to export data for backup purposes or to analyze data in external tools. Data Import Wizard is used to import data into Salesforce, not export. Data Loader is a desktop tool that can also export data, but it is more complex and requires installation. Report Builder is used to create reports in Salesforce, not export data. References:
https://help.salesforce.com/s/articleView?id=sf.data_export.htm&type=5

Explanation
A lookup relationship is a type of relationship that links two objects together, but does not affect security or deletion. It can be used to create a relationship between shipments and accounts where shipments should have a lookup to accounts; this way, shipments can show related account information on their records, but when an account is deleted, the shipments remain. Accounts should have a lookup to shipments is not a valid option because it does not match the requirement of seeing all shipment items from an account page; it would show related account information on shipment records instead. Shipments should have a master-detail to accounts or accounts should have a master-detail to shipments are not valid options either because they do not match the requirement of keeping shipments when an account is deleted; they would delete shipments along with their master account records. References:
https://help.salesforce.com/s/articleView?id=sf.relationships_lookup.htm&type=5

Explanation
Knowledge is a feature that can be used to meet this requirement. Knowledge allows users to create, manage, and share articles that provide information and solutions for common issues or questions. Data categories can be used to organize articles into different topics and make them easier to find and access. Users can view related articles from the Case page layout based on the data category of the case. References:
https://help.salesforce.com/s/articleView?id=sf.knowledge_overview.htm&type=5https://help.salesforce.com/s/a