The indented algorithm of a negative logic nested IF/THEN/ELSE looks like:

What does the following program do?

``` // Printing.cpp #include using namespace std; int main() { for (int i{1}; i <= 10; i++) { for (int j{1}; j <= 5; j++) { cout << '@'; } cout << endl; } } ```

?One type of validity check, called _____, is a set of rules that avoids data inconsistency and quality problems.

A. ?candidate integrity B. ?foreign integrity C. ?referential integrity D. ?combinatorial integrity