title: Submit HTML form and get radio button value without javascript or jquery
body: <p>I am trying to implement Net Promoter Score survey through email body. As email clients don't allow Javascript. I want to submit the radio button value to a url that is defined in Form Action attribute. </p>
  
  <p>But my question is how to know which radio button is checked, and how to submit it to a remote url ? and in which form will it be submitted ? i.e name value pair or how ?</p>
  
  <p>Note: I know how Jquery and Ajax. I want to achieve same things without using Ajax or Jquery or Javascript</p>