If you want to inform a 1arge number of people about something，you _________ advertise by public announcement.  

A、<p style="margin: 0px 0px 0px 28px; text-indent: 0px;"><span style="font-size: 16px;"><span style="font-family: Times New Roman;">&nbsp;might need&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span>

B、<p style="margin: 0px 0px 0px 28px; text-indent: 0px;"><span style="font-size: 16px;"><span style="font-family: Times New Roman;">might need to </span></span></p><p><span style="font-family:;" new="" times=""><br/></span></p><p></p>

C、<font face="宋体"></font></p><p style="margin: 0cm 0cm 0pt 21pt; text-indent: 0cm; mso-char-indent-count: 0;"><span lang="EN-US" style="font-family: &quot;Times New Roman&quot;,&quot;serif&quot;; font-size: 12pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">need not to<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="mso-tab-count: 4;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></p>

D、<p style="margin: 0px 0px 0px 28px; text-indent: 0px;"><span style="font-family:;" new="" times="">&nbsp;not need to </span></p><p></p>