单选题下列钢筋混凝土高层建筑的剪力墙开洞布置图中，抗震最不利的是（　　）。<br/> A.<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/18931094_0.jpg"><br/> B.<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/18931094_0_1.jpg"><br/> C.<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/18931094_0_2.jpg"><br/> D.<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/18931094_0_3.jpg">