There are 3 button options and for connection, they use the name attribute, which is the main purpose of a Radio button to work get together and allow only one option. The name Attribute should be the same identical name in this example all button has only name=”gender”.
<!DOCTYPE html>
<html>
<body>
<h1>HTML Radio Button</h1>
<input type="radio" name="gender" value="male"> Male<br>
<input type="radio" name="gender" value="female"> Female<br>
<input type="radio" name="gender" value="other"> Other
</body>
</html>
Output: In a GIF, you can see only one option can select.