Item 4 and item ____ in the figure above are both meta tags.

What is the difference between a multiuser and a multitasking system?

What will be an ideal response?

What is the output of the following code?

``` #include using namespace std; void f(double &p) { p += 2; } int main() { double x = 1; double y = 1; f(x); f(y); cout << "x is " << x; cout << " y is " << y << endl; return 0; } ``` A. x is 2 y is 2 B. x is 1 y is 1 C. x is 1 y is 2 D. x is 3 y is 3 E. x is 2 y is 1