问题：

[单选]

void waitForSignal（） { 
Object obj = new Object（）； 
synchronized （Thread.currentThread（）） { 
obj.wait（）； 
obj.notify（）； 
} 
} 
Which is true？（） 

A .  This code may throw an InterruptedException.
B .  This code may throw an IllegalStateException.
C .  This code may throw a TimeoutException after ten minutes.
D .  This code will not compile unless “obj.wait（）” is replaced with “（（Thread） obj）.wait（）”.
E .  Reversing the order of obj.wait（） and obj.notify（） may cause this method to complete normally.
F .  A call to notify（） or notifyAll（） from another thread may cause this method to complete normally.