An auxiliary key is a column in one table whose values match the primary key in another table.

What will the following code display?

``` int x = 0; while (x < 5) { cout << x << " "; x++; } ``` a. 0 1 2 3 4 5 b. 0 1 2 3 4 c. 0 1 2 3 4 d. This is an infinite loop

By default, method sorted uses ________.

a. ascending order b. the natural order for the stream's element type c. descending order d. the order specified in a command-line argument