[单选题]Given that t1 is a reference to a live thread， whi

AThe Thread.sleep（） method can take t1 as an argument.

BThe Object.notify（） method can take t1 as an argument.

CThe Thread.yield（） method can take t1 as an argument.

DThe Thread.setPriority（） method can take t1 as an argument.

EThe Object.notify（） method arbitrarily chooses which thread to notify.