Given that t1 is a reference to a live thread, which is true?
A. The Thread.sleep() method can take t1 as an argument.
B. The Object.notify() method can take t1 as an argument.
C. The Thread.yield() method can take t1 as an argument.
D. The Thread.setPriority() method can take t1 as an argument.
E. The Object.notify() method arbitrarily chooses which thread to notify.

According to me the answer will be A,C,D

Thoroughly read the Javadocs of the Thread class; do you still think your answers are correct? If yes, give reasons rather than just saying "I think A,C,D are correct".