Question 3:
A link that executes an action defined by a controller, and then either refreshes the current page, or navigates to a different page based on the PageReference variable that is returned by the action. An <apex:commandLink> component must always be a child of an <apex:form> component. To add request parameters to an <apex:commandLink>, use nested <apex:param> components.
Answer options:
A. apex:dataList B. apex:enhancedList C. apex:commandLink D. apex:include