What is the most likely result of executing the following application? 

A. A deadlock is produced at runtime.

B. A livelock is produced at runtime.

C. The application completes successfully.

D. The code does not compile.

E. The code hangs indefinitely at runtime.

F. The output cannot be determined ahead of time.

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package jokes; import public class Riddle { } public void sleep () { try {Thread.sleep (5000); } catch (Exception e) {} java.util.concurrent.*; } public String getQuestion (Riddle r) { synchronized { sleep(); } } } public synchronized String getAnswer (Riddle r) { } if(r = null) r.getAnswer (null); return "How many programmers does it take " + "to change a light bulb?"; sleep(); if(r = null) r.getAnswer (null); return "None, that's a hardware problem"; public static void main(String... ununused) { var r1 = new Riddle(); var r2 = new Riddle (); var s = Executors.newFixedThreadPool (2); s.submit(() > r1.getQuestion (r2)); s.execute(() > r2.getAnswer (r1)); s.shutdown();