When creating a Visualforce page that uses a standard controller and a controller extension for a custom object named Notice__c, the correct syntax is: <apex:page standardController="Notice__c" extensions="myControllerExtension"> Option D: apex standardController="Notice__c" extensions="myControllerExtension" Correct Syntax. standardController attribute specifies the standard controller for the custom object Notice__c. extensions attribute specifies the name of the Apex class myControllerExtension that extends the functionality of the standard controller. Reference: Options Not Applicable: Option A: apex controller="Notice__c" extensions="myControllerExtension" Incorrect. The controller attribute is used for custom controllers, not standard controllers. Option B and C: Syntax errors and incorrect attributes make these options invalid. Conclusion: The correct way to specify a controller and extension for the Notice__c object is Option D.