Which of the following is a security instrument in a real estate transaction?

Kathleen is a member of the human resource (HR) department at Jade Corp. She had set a goal to enhance the firm's strategy. She worked to attain it by understanding the current resources and by attracting new resources according to requirements. However, her strategic ideas did not lead to effective results. Which of the following, if true, would imply the reason for Kathleen's failure in attaining her goal?

A. Kathleen did not set precisely the same job roles at Jade as other organizations. B. Kathleen did not make an attempt to understand Jade's business, its industry, and its competitors. C. Kathleen emphasized the use of broadly defined jobs. D. Kathleen evaluated performance of an employee without being familiar with the details of the job. E. Kathleen developed a strategy to make profits without depleting the firm's resources, including employees and natural resources

XYZ company's REA diagram depicts the following entities: sales, inventory, salesperson, cashier, customer, cash receipts, and cash. The inventory-sales and cash receipts-sales relationships are both many-to-many. How many tables does it need to implement its REA diagram in a relational database?

A. 8 B. 7 C. 9 D. 10