What CSS code would you use to place an image from the website example.com as a marker in an unordered list (<ul>)?
example.com
<ul>
ul { bullet-image: url('https://example.com/image.png'); }
ul { list-style: image('https://example.com/image.png'); }
ul { marker-image: url('https://example.com/image.png'); }
ul { list-style-image: url('https://example.com/image.png'); }