Which command from the JDK should be used to compile the following source code contained in a file named SmallProg.java?

Select the one correct answer.

(a) java SmallProg

(b) javac SmallProg

(c) java SmallProg.java

(d) javac SmallProg.java

(e) java SmallProg main

public class SmallProg ( public static void main(String[] args) {System.out.println ("Good luck! "); } }