A.If Int(x)= x And Sqr(x)> = 100 Then Print "OK" Else Print "Error" B.If Fix (x)= x And Abs(x)> = 100 Then Print "OK" Else Print "Error" C.If Int(x)= x And (x > = 100, x < = -100)Then Print "OK" Else Print "Error" D.If Fix(x)= x And x > = 100 And x < = -100 Then Print "OK" Else Print "Error"