Review Question_3: (3.0 points) This Review Question consists of two part! Carefully examine the following lines of code Public Class DemoUpper Private Sub btnDisplay_Click(...) Handles btnDisplay. Click Const strLowerCase As String = "visual basic" strLowerCase = strLowerCase.ToUpper txtOutput.Text = strLowerCase End Sub End Class a) Required: (1.5 points) By using a paragraph of two lines, (1) Identify any statement or statements that causes errors in the above lines of code. (2) State the type of the error or errors. (3) Clearly explain why the error or errors occurred. If there is no error, then state "None". "Assume no errors on the instructor part". b) Required: (1.5 points) Rewrite above code with the error or errors removed