The following statement declares a StreamReader object called “reader”. Which statement opens a file named “data.txt” to the StreamReader object?streamReader reader;Question 1Select one:a.reader = OpenFile("data.txt");b.reader = open("data.txt");c.reader = File.OpenText("Data.txt");d.reader = File.OpenFile("Data.txt");Clear my choiceQuestion 2Not yet answeredMarked out of 1Flag questionTipsQuestion textAssuming openFile is the name of an OpenFileDialog control, which expression can call the ShowDialog method and determine whether the user clicks the Open button?Question 2Select one:a.if (openFile.ShowDialog() == true)b.if (openFile.ShowDialog() == DialogResult.Open)c.if (openFile.ShowDialog() == DialogResult.OK)d.if (openFile.ShowDialog() == OK)Clear my choiceQuestion 3Not yet answeredMarked out of 1Flag questionTipsQuestion textWhich statement will write a persons firstname and surname to a textfile on one line? (Assume that the StreamWriter variable writer has been declared and has access to the file and that the variables firstname and surname have been declared and have values in them).Question 3Select one:a.writer(firstname + " " + surname);b.writer = WriteLine (firstname + " " + surname);c.writer.WriteLine(firstname + " " + surname);d.writer.WriteLine(firstname , " " , surname);Clear my choiceQuestion 4Not yet answeredMarked out of 1Flag questionTipsQuestion textWhich statement will correctly read an integer value from a text file?  (Assume that the StreamReader object reader has been declared and has access to the file and the integer variable number has been declared.  Assume that there is one integer value per line in the file).Question 4Select one:a.number = reader.ReadLine();b.number = reader.ReadLine().Parse();c.number = int.Parse(reader.ReadLine());d.number = (int) reader.ReadLine();Clear my choiceQuestion 5Not yet answeredMarked out of 1Flag questionTipsQuestion textWhich statement will correctly read a line of text from a text file?  (Assume that the StreamReader object reader has been declared and has access to the file and the string variable line has been declared).Question 5Select one:a.line = reader.ReadLine();b.reader = ReadLine();c.reader.ReadLine();d.line = reader.Rea