如图所示，柱平法标注采用截面标注，图中KZ2所有纵向受力钢筋为（）。 <img src="/Image1/bd/bdcbd9c14a2a92580b63ee663394a9b1.png" /><br>A:12<img src="/Image1/83/83194900edada879126b5548ba78adee.png" />22<br>B:12<img src="/Image1/83/83194900edada879126b5548ba78adee.png" />18<br>C:4<img src="/Image1/83/83194900edada879126b5548ba78adee.png" />22+12<img src="/Image1/83/83194900edada879126b5548ba78adee.png" />18<br>D:4<img src="/Image1/83/83194900edada879126b5548ba78adee.png" />22+8<img src="/Image1/83/83194900edada879126b5548ba78adee.png" />18