What will be the output of the following program?

public class JavaThreadsQuiz

$\{$

public static void main$($String$[]$ args$)$

$\{$

Thread thread $=$ new Thread$()$;

thread.start$()$;

thread.start$()$;

$\}$

$\}$

Select one:

a$.$ main

b$.$ It prints nothing

c$.$ It prints nothing because the package "java.lang.Thread" should be imported.

d$.$ It throws a "java.lang.IllegalThreadStateException"

e$.$ None of the mentioned.