如何启用禁用的单选按钮？

function enableDisableRadioButtons() {
  var option1 = document.getElementById("option1");
  var option2 = document.getElementById("option2");
  var option3 = document.getElementById("option3");

  if (option1.disabled) {
    option1.disabled = false;
    option2.disabled = false;
    option3.disabled = false;
  } else {
    option1.disabled = true;
    option2.disabled = true;
    option3.disabled = true;
  }
}