Shawn is compiling a report of his sales for the year. He created a grand total column on his spreadsheet. The grand total was copied to his income statement as reported sales for the year. During Shawn's year end audit, it was determined that the sales number was wrong. The auditor recalculated the total by summing each column and summing the row of column totals. Shawn's grand total column had missed the first column of sales. What control could have prevented this issue? O A. Data matching B. Cross-footing C. D. Input validation Sequence check