Given： 6. 7.<%="processing" %> 8. and a custom tag handler for foo which extends TagSupport. Which two are true about thetag handler referenced by foo？（）

• A、The doStartTag method is called once.
• B、The doAfterBody method is NOT called.
• C、The EVAL_PAGE constant is a valid return value for the doEndTag method.
• D、The SKIP_PAGE constant is a valid return value for the doStartTag method.
• E、The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.