单选题

下面哪些选项会触发http请求：

Question

A. <textarea><img src="pic.jpg" style="display:none" alt="my home"></textarea>

B. <textarea style="display:none"> <img src="pic.jpg" style="visibility:hidden" alt="my home"></ textarea>

C. <div style="display:none background-image:url(pic.jpg) "></div>

D. < textarea><span style="display:none background-image:url(pic.jpg) "></ span></ textarea >