图示连续梁的支座A、D均发生沉降,则下列变形图正确的是( )。
A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13560260_0.jpg"> B
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13560260_0_1.jpg"> C
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13560260_0_2.jpg"> D
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251122/13560260_0_3.jpg">