A.ReadtheHttpRequest.FilespropertyandcalltheHttpPostedFile.SaveAsmethodforeachfile.
B.ReadtheHttpRequest.inputStreampropertyandcalltheSystem.Io.File.WriteLinesmethodforeachfile.
C.ReadtheHttpRequest.inputStreampropertyandcalltheHttpResponse.WriteLinemethodforeachfile.
D.ReadtheHttpRequest.FilespropertyandcalltheSystem.Io.File.WriteLinesmethodforeachfile.