Option B is Correct. The start() method causes this thread to begin execution; the Java 

Virtual Machine calls the run method of this thread.

Option A is wrong. There is no init() method in the Thread class.

Option C is wrong. The run() method of a thread is like the main() method to an application. 

Starting the thread causes the object's run method to be called in that separately executing

 thread.

Option D is wrong. The resume() method is deprecated. It resumes a suspended thread.