Whichtwoof statementsaretrue?()A.Itispossibletosynchronizestaticmethods.B.Whenathreadhasyieldedasaresultofyield（），itreleasesitslocks.C.Whenathreadissleepingasaresultofsleep（），itreleasesitslocks.D.TheObject.wait（）methodcanbeinvokedonlyfromasynchronizedcont

A.Itispossibletosynchronizestaticmethods.

B.Whenathreadhasyieldedasaresultofyield（），itreleasesitslocks.

C.Whenathreadissleepingasaresultofsleep（），itreleasesitslocks.

D.TheObject.wait（）methodcanbeinvokedonlyfromasynchronizedcontext.

E.TheThread.sleep（）methodcanbeinvokedonlyfromasynchronizedcontext.

F.Whenthethreadschedulerreceivesanotify（）request，andnotifiesathread，thatthreadimmediatelyreleasesitslock.