Assigning score to quiz

Good day
The code below shows quiz app with questions, answers and submit button to move to the next question when option is chosen and clicked
XAML:









CS:
int currentNum = 0;
string[] questions = new string[] { "What is 9 cubed?", "What is 6+3?", "What type of animal is tuna sandwiches made from?", "What is 18 backwards?" };
string[] options = new string[] { "9", "81", "729", "2", "4", "2", "9", "1", "zebra", "aardvark", "fish", "gnu", "31", "81", "91", "88" };
string[] Answers = new string[] { "81", "9", "fish", "81 ", };
public MainPage()
{
InitializeComponent();
generateBinding(currentNum);
}
public void generateBinding(int currentNum)
{
question.Text = questions[currentNum];
opt1.Content = answers[currentNum * 4];
opt2.Content = answers[currentNum * 4 + 1];
opt3.Content = answers[currentNum * 4 + 2];
opt4.Content = answers[currentNum * 4 + 3];
}
private void Button_Click(object sender, RoutedEventArgs e)
{ currentNum++;
generateBinding(currentNum);
} Here are my questions
-How will i make the submit button to show the number of wrong answer, correct answer and score in a message box
on clicking on submit button after attempting the last question
-I will also like to add a timer/stop watch in order to add duration to the quiz
Regards and reply soon

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