class Test4 {  
public static void main（String [] args） {  
boolean x = true；  
boolean y = false；  
short z = 42；  
if（（z++ = = 42） && （y = true）） z++；  
if（（x = false） || （++z = = 45）） z++；  
System.out.println（"z = " + z）；  
}  
}  
结果为：（）  

A.z = 42
B.z = 44
C.z = 45
D.z = 46