done without smiley. added prompt for reset

ElementaryMathematics/Form1.cs

@@ -326,6 +326,16 @@ namespace ElementaryMathematics
         }
 
         private void btnReset_Click(object sender, EventArgs e)
+        {
+            
+            DialogResult btnDialog;
+            string strResponse;
+
+            strResponse = "Do you really want to reset all statistics?";
+
+            btnDialog = MessageBox.Show(strResponse, "Chapter Four", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2);
+
+            if (btnDialog == DialogResult.Yes)
             {
                 btnClear_Click(sender, e);
 
@@ -339,6 +349,8 @@ namespace ElementaryMathematics
                 lblNumIncorrect.Text = "0";
             }
             
+        }
+
         private void UpdateButtons()
         {