Given the following 2D array declaration: int Q[3] [3]= ({10, 20, 30), (40, 50, 60), (70, 80, 90}}; What is stored at position Q[2][2]? Question 4 Supposed we have the following declaration for an array Z: Consider the following code segment: for (int i = 0; i < 20; i++) 2 [i] = 12; How many values of Z are 1? int Z[20];