Which of the Following Scenarios May Not Always Cause a Deadlock

Multiple Choice

Which of the following scenarios may not always cause a deadlock among two threads?
I Thread one is in an infinite loop and has acquired a lock
II Both threads are in an infinite loop, and one thread has acquired a lock
III Both threads are in an infinite loop, and both threads have acquired locks

A) I
B) II
C) III
D) I, II or III