如何使用带有select onchange的条件语句在javascript函数中返回html代码

<select id="mySelect" onchange="myFunction()">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
  <option value="option3">Option 3</option>
</select>

<div id="result"></div>

function myFunction() {
  var selectValue = document.getElementById("mySelect").value;
  var resultDiv = document.getElementById("result");

  if (selectValue === "option1") {
    resultDiv.innerHTML = "<p>Option 1 is selected.</p>";
  } else if (selectValue === "option2") {
    resultDiv.innerHTML = "<p>Option 2 is selected.</p>";
  } else if (selectValue === "option3") {
    resultDiv.innerHTML = "<p>Option 3 is selected.</p>";
  }
}