checked for radio button then what is for select tag? code example

Example 1: html radio button checked

<input type="radio" id="huey" name="drone" value="huey"
         checked> 
<!-- https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/radio-->

Example 2: html radio only one checked

<!--Just manke both names equal -->
<input type="radio" name="options" id="1"/>
<input type="radio" name="options" id="2"/>