Question 3 1 pts What does the following JavaFX code do? import javafx.application Application; import javafx.scene.Scene; import javafx.scene.chart.NumberAxis; import javafx.scene.chart.StackedAreaChart; import javafx.scene.chart.XYChart; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class Q1 extends Application { @Override public void start(Stage primaryStage) throws Exception { primaryStage.setTitle("Q1"); NumberAxis xAxis = new NumberAxis(); XAxis.setLabel("7 Day Interval"); NumberAxis yAxis = new NumberAxis(); yAxis.setLabel("Visits"); StackedAreaChart stackedAreaChart = new StackedAreaChart(xAxis, yAxis); XYChart.Series dataSeries 1 = new XYChart.Series(); data Series 1.setName("Desktop"); dataSeries1.getData().add(new XYChart.Data(0, 567)); dataSeries1.getData().add(new XYChart.Datal 1, 612)); dataSeries1.getData().add(new XYChart.Datal 2, 800)); dataSeries1.getData().add(new XYChart.Datal 3,780)); dataSeries1.getData().add(new XYChart.Datal 4, 650)); dataSeries1.getData().add(new XYChart.Datal 5, 610)); dataSeries1.getData().add(new XYChart.Datal 6,590)); stackedAreaChart.getData().add(dataSeries 1); XYChart.Series dataSeries 2 = new XYChart.Series(); dataSeries 2.setName("Mobile"); dataSeries2.getData().add(new XYChart.Data(0, 101)); dataSeries2.getData().add(new XYChart.Datal 1, 110)); dataSeries2.getData().add(new XYChart.Datal 2, 140)); dataSeries 2.getData().add(new XYChart.Datal 3, 132)); dataSeries2.getData().add(new XYChart.Datal 4, 115)); dataSeries2.getData().add(new XYChart.Datal 5, 109)); dataSeries2.getData().add(new XYChart.Datal 6, 105)); stackedAreaChart.getData().add(dataSeries2); VBox vbox = new VBox(stackedAreaChart); Scene scene = new Scene(vbox, 400, 200); primaryStage.setScene(scene); primaryStage.setHeight(300); primaryStage.setWidth(1200); primaryStage.show(); } public static void main(String[] args) { Application.launch(args); } } It implements an hbox pane. O It implements a menu event handler. O It implements a stacked chart. O It implements a button click event. Question 4 1 pts A(n) defines how the program should respond toaction events. O scene O menu O event handler O action event