A URL action is Tableau’s mechanism for opening an external web page or web-based resource from a worksheet or dashboard. Because the requirement says the page must open when the user clicks the sheet, the action should be configured as Go to URL with Run action on set to Select. Select runs the action when the user clicks a mark, while Menu requires the user to open a context or tooltip menu and choose the action explicitly. A navigation button and a Go to Sheet action move between Tableau sheets or dashboards rather than opening an external webpage. A Web Page object embeds web content within a dashboard and does not satisfy the requirement to open the specific page in the default browser when the sheet is clicked. Therefore, option C is the appropriate configuration.