Answer:
<em>D. Separation of duties</em>
Explanation:
Separation of duties (SoD) is a fundamental concept in internal controls and is the hardest and often the most expensive to achieve.
<em>This aim is accomplished by distributing the tasks and associated permissions among multiple people for a specific security system.</em>
Answer:On the Home tab, in the Views group, click View, and then click Design View. In the table design grid, select the field or fields that you want to use as the primary key. To select one field, click the row selector for the field that you want.
Explanation:
QR codes make up the basic structure of a relational database with columns containing field data and rows containing record information.
