Row() function use in EXCEL VBA

I have made a bit little changes to the function and have used "c.row" but it is thowing some different error now.

Public Function displayExpectedValues()
startRowValue = InputBox("Enter FirstRow Number to read data")
EndRowValue = InputBox("Enter Last Row Number to read Data")

c = Sheets("Result Reader").Range("Q" & CStr(startRowValue))

Do While startRowValue < EndRowValue
    c.Offset(0, 1) = getIZV(c.Row) ' Object Required error
    c.Offset(0, 3) = getIZV(c.Row)
    c.Offset(0, 2) = c.Offset(0, 1).Value + c.Offset(0, 3).Value
    startRowValue = startRowValue + 1
Loop
End Function