【单项选择题】
设变量x = 4,y = -1,a = 7,b = -8,下面表达式()的值为“假”。 
A、A.x+a<=b-y
B、B.x>0 AND y<0
C、C.a=b OR x>y
D、D.x+y>a+b AND NOT(y<b)
A、A.x+a<=b-y
B、B.x>0 AND y<0
C、C.a=b OR x>y
D、D.x+y>a+b AND NOT(y<b)
A、An x255 with 4 processors B、An x365 with 4 processors C、An x445 with 4 processors D、An x445 with 32 processors