Answer:
Black
Explanation:
Assuming this is right and there are no <DIV> tags:
HTML: Hello WorldLink
Then the color is not defined by the CSS, since there is no DIV markup within the HTML and no generic DIV classes in CSS, so it should be black by default.
Warning: There could be some HTML tags missing in your question due to HTML filtration on Brainly, therefore my answer should be right for the markup above, but may be wrong for the real markup (if something is missing).