单项选择题
按照图画出所示图形，求剖面线区域的面积。（）
A.3978.7538 B.3978.7583 C.3978.7358 D.3978.7385
A.1734.3833 B.1734.3338 C.1734.3383 D.1734.8333
A.11366.8042 B.11366.8024 C.11366.8204 D.11366.8240
