The operating system's application programming interface (API) provides software developers with tools they use to build application software without needing to understand the inner workings of the operating system and hardware.

Analyze the following code:

``` import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.StackPane; import javafx.stage.Stage; public class Test extends Application { @Override // Override the start method in the Application class public void start(Stage primaryStage) { StackPane pane = new StackPane(); Button bt1 = new Button("Java"); Button bt2 = new Button("Java"); Button bt3 = new Button("Java"); Button bt4 = new Button("Java"); pane.getChildren().addAll(bt1, bt2, bt3, bt4); 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. One button is displayed with the text "Java". b. Two buttons are displayed with the same text "Java". c. Three buttons are displayed with the same text "Java". d. Four buttons are displayed with the same text "Java".

The ____ constraint schedules the Finish date of the task on or before the date that you specify.

A. Finish No Later Than B. Must Finish On C. As Late As Possible D. Finish No Earlier Than