下列事件过程的功能是：建立一个名为Datal的随机文件，存放角度值及这些角度的正弦函数值和余弦函数值，角度为1，2，3，…，90。请选择正确的程序段是( )，将程序补充完整。 Private Type AngK As IntegerSinx As SingleCosx As Single End Type Dim Ksc As Ang Private Sub Form_CliCk() Dim Y As Single Dim i As Integer Dim Ksc As AngOpen______Y=3.14159/180For i=1 To 90 Ksc.K=i Ksc.Sinx=Sin(i*Y) Ksc Cosx=Cos(i*Y) ______Next iClose#2 EndSub

A．"..\Data1.txt"For Random As#1 Len=10 Put#1,i,Ksc

B．"..\Data1.txt"For Random As#1 Len=10 Put#1,Y,Ksc

C．"..\Data1.txt"For Random As#1 Put#1,i,Ksc

D．"..\Data1.txt"For Random As#1 Put#1,Y,Ksc