For the theory test, I was under the assumption that the ERD drawing provided to us would be correct, however, many of the relationship type between entity questions are conflicting. For example: "" Question 2: In the case study, what type of relationship exists between Client and HiredVehicle? a. One-to-One b. One-to-Many c. Many-to-Many d. Recursive Relationship "" The correct answer is listed as b: One-to-Many. However, in the solution provided, the relationship is listed as One-to-One. I do not understand why either the solution provided is wrong, or we are being penalised for using the solution given to us. There are several more questions that follow this concerning logic (Q2, Q7, Q14, Q16, Q21, Q22). Please let me know if I have misunderstood.