2 points 41. Which of the following attributes in a customer table of a relational database could function as the primary key? Customer address. Date of sale. Customer number. Balance due 2 points 42. Internal audit decided to use data analytics to detect errors or other unanticipated variances in several financial statement accounts. Which of the following data analytic techniques would most likely be used to compare information from various sources, such as supplier price lists, purchase orders, and supplier invoices? Sorting Matching Trend analysis Ratio analysis 43. Which of the following procedures most likely would identify unwanted 2 points page breaks or tabs in extracted data? Decoding data. Filtering data. Integrating data. Removing nonprintable characters