If we want roman numerals as marker types, we need the I marker type.

Can you order the type attribute so that it shows roman numerals?

<html>
<body><ol type="I"><li>Harry</li><li>Hermione</li><li>Ron</li></ol></body>
</html>
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Awesome! You know your HTML attributes.

Be sure to start with type followed by the = sign and, finally, I in between quotation marks.