8. (a) Variables can be divided into four categories: static, stack-dynamic, explicit heap- dynamic, and implicit heap-dynamic. For each variable in the C++program below, specify which category it belongs to. Include both named variables and anonymous variables in your answer #include using namespace std; int ni int sum(int a, int n) int main(void) int i; cout >n; int a -new int[n)i for oi<>