据试验资料，玉米发芽至出苗期需水量占总需水量的（）。

A.12%~14%
B.14%~16%
C.16%~18%
D.18%~20%

A.1.5~1.8m³∕d
B.1.8~2.5m³∕d
C.2.5~3.8m³∕d
D.3.8~4.0m³∕d

A.12%~18%
B.18%~24%
C.24%~30%
D.30%~35%