In Salesforce B2C Commerce, the $httpUrl method is used to generate a fully qualified URL to a specified route. For creating a link within a content asset to another content asset, you should use the $httpUrl function with the appropriate pipeline and parameters. In this case, 'Content-Show' is the correct pipeline to use for fetching content assets based on their ID, and the 'cid' parameter specifies the content asset ID. Thus,
$httpUrl('Content-Show', 'cid', 'terms-and-conditions')$ correctly generates the URL needed to link to the content asset with the ID "terms-and-conditions".