How to use aria-label in this code block?

1 
<label for="sec1">Security Question 2*</label>
  <dsp:select iclass="random quest" name="userSecureQuestion5" bean="AEUserProfileFormHandler.userSecureQuestion5" style="width: 275px !important;margin-left: 180px !important;">
    <dsp:option value="" >Security Question 2</dsp:option>
    <dsp:option value="What is the last name of your  best friend?" /><span style="font-size:11px;">What is the last name of your  best friend?</span>
    <dsp:option value="What state would you like to visit?" />What state would you like to visit?
    <dsp:option value="Who is a person you'd most like to meet?" />Who is a person you'd most like to meet?
  </dsp:select>
2

What’s your question?

4

Have you seen this documentation? There are some examples of how to use aria tags in labels, inputs etc:

Documentation