Please see the picture

The Andrede option have red * , that is indicating mandatory field.
I’ve tried Andrede<span class=required>*</span> as option value , but its not working its showing the full html tags
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Option elements can contain only text.
If you want to include markup, then you need to replace the entire select element with a JavaScript widget.
I recommend changing the design so that you have a real
<label>instead of using a placeholder or default value (both of which come with serious implications for accessibility). It is a webpage, so scrollbars are available. There is no need to have a cramped design.