A dataset is being analyzed using a PivotTable for the purpose of conducting a data audit. The dataset includes sale and returns transactions for a retail company that operates 30 stores. There are a total of seven days of data and each row contains the date and time in which each transaction occurred and the dollar value. The PivotTable was constructed such that the Date field was placed in the FILTERS area, Store field in the ROWS area, and the Transaction and Value fields in the VALUES area. The output of the Transaction field was set to COUNT and the Value field was set to SUM. The PivotTable showed every store had 500 transactions and since the Value field was summed, the net value (sales minus returns) was shown for each store. Which of the following should be cause for concern as a result of this data audit? a. The company only has 30 stores. b. Seven days of data is not sufficient to satisfy the project objective. c. Sales and returns should be shown separately. d. A field containing dates cannot be placed into the FILTER area of a PivotTable. e. All stores are showing exactly the same number of transactions