单项选择题 You are creating a library of custom tags that mimic the HTML form tags. When the user submits a formthat fails validation， the JSP form is forwarded back to the user. The<t：textField> tag must support the ability to re-populate the form field with the request parameters from theuser’s last request. For example， if the user entered "Samantha" in the text field called firstName， then theform is re-populated like this： <input type=’text’ name=’firstName’ value=’Samantha’ />  Which tag handler method will accomplish thisgoal？（）

单项选择题 WhichstatementistrueifthedoStartTagmethodreturnsEVAL_BODY_BUFFERED？（）

单项选择题 Assume the tag handler for a st：simple tag extends Simple Tag Support. In what way can scriptlet code beused in the body of st：simple？（）