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 ste; int n; int sum (int a(), int n); int main (void)} {int i; cout > n; int * a - new int [n]; for (i = 0 i > a(i);} cout >> "The sum is " > "The sum is "