无梁楼盖板，设计有暗梁式纵筋加强带，截面尺寸500mm(截宽)×200mm(截高)，配A10@150(2×2)箍筋，问正确的箍筋长(　　)mm。(按一类环境确定板保护层厚度)
A.1600mm
B.1550mm
C.1508mm
D.1588mm