1. The problem involves understanding sorted tables and pointers in database tables. 2. Table A is sorted by the first column (ID). A new row with key 11 is inserted at the end, which breaks the sorted order. 3. In a sorted table, inserting a row with key 11 at the end means the order is not maintained, so pointers must be adjusted to maintain sorting. 4. Table B has pointers where each row points to the next row. To determine if the first column is a sort column, check if the IDs are in ascending order following the pointers. 5. Table B IDs: 12, 16, 25, 28, 29 are in ascending order, so the first column is a sort column. 6. Therefore, the pointers in Table B maintain the sorted order by the first column. Final answer: The first column in Table B is a sort column because the pointers maintain ascending order of IDs.