Analyze the following code:

```
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.FlowPane;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

public class Test extends Application {
@Override // Override the start method in the Application class
public void start(Stage primaryStage) {
Pane pane = new FlowPane();

ToggleGroup group = new ToggleGroup();
RadioButton rb1 = new RadioButton("Java");
RadioButton rb2 = new RadioButton("C++");
pane.getChildren().addAll(rb1, rb2);

Scene scene = new Scene(pane, 200, 250);
primaryStage.setTitle("Test"); // Set the stage title
primaryStage.setScene(scene); // Place the scene in the stage
primaryStage.show(); // Display the stage
}

/**
* The main method is only needed for the IDE with limited JavaFX
* support. Not needed for running from the command line.
*/
public static void main(String[] args) {
launch(args);
}
}```
a. The program displays two radio buttons. The two radio buttons are grouped.
b. The program displays one radio button with text Java.
c. The program displays two radio buttons. The two radio buttons are not grouped.
d. The program displays one radio button with text C++.

c To group the two use rb1.setToggleGroup(group); rb2.setToggleGroup(group);