Question 31:
A button that is rendered as an HTML input element with the type attribute set to submit, reset, or image, depending on the <apex:commandButton> tag`s specified values. The button 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:commandButton> component must always be a child of an <apex:form> component. See also: <apex:commandLink>
Answer options:
A. apex:commandButton B. apex:flash C. apex:emailPublisher D. apex:actionRegion