<p>Assuming you have left a helpful comment which your question suggests you have then sweating about which reason to give is not necessary. I would go for lack of detail/clarity myself whenever I am in doubt partly because I am never quite sure how to measure lack of focus.</p>
<p>If three people vote to close for three different reasons it still gets closed. I did ask a question about unanimity ages ago <a href="https://stats.meta.stackexchange.com/questions/4436/does-unanimity-of-reasons-to-close-matter">Does unanimity of reasons to close matter?</a>. The consensus was it does not matter.</p>
