Please find the ER / EER diagram in Figure 1 below and answer following questions. DA EXECUTIVE 1 CUSTOMER Base INSURANCE + SPORTS CAR POKUUP_N GEN_SPORTS FORMULA ONE Coro Figure 1 2. What type of attribute is TotalSal and why is it called so? (1 mark) Marking Scheme (1 Mark): First part: 0.5 mark Second part: 0.5 mark Marks vary depending on the correctness of the answer Answer here: b. Do we really need descriptive attribute DateOfAdding and Why? (1 mark)