单选题

HTML 文档由标签和文本内容组成,下列选项中,用于标记网页开始的标签是?( )

A.

</p> </div> </div> <div class="item" data-choice="B"> <div class="choice">B.</div> <div class="optioncontent" > <p><head></p> </div> </div> <div class="item" data-choice="C"> <div class="choice">C.</div> <div class="optioncontent" > <p><body></p> </div> </div> <div class="item" data-choice="D"> <div class="choice">D.</div> <div class="optioncontent" > <p><span style="color: #333333; font-family: Calibri; font-size: 16px; background-color: #FFFFFF;"><html></span></p> </div> </div> </div> <div class="answer-result"></div> </div> </div> </div> <!-- E 正文 --> </div> <!-- S 付费阅读 --> <!-- E 付费阅读 --> <!-- S 点赞 --> <div class="article-donate"> <a href="javascript:" class="btn btn-primary btn-like btn-lg" data-action="vote" data-type="like" data-id="16131" data-tag="archives"><i class="fa fa-thumbs-up"></i> 点赞(<span>0</span>)</a> <a href="javascript:" class="btn btn-outline-primary btn-donate btn-lg" data-action="donate" data-id="16131" data-image="/assets/addons/cms/img/qrcode.png"><i class="fa 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