1. (20 pts) The figure below shows an ERD of a clinic. Please answer the following True or False questions with the figure below. 1) Patients can have a Patient ID without visiting this clinic. (T/F) 2) A Patient ID is not a foreign key in the Visit table. (T/F) 3) Patients' visit(s) to this clinic can end up with no diagnosis. (T/F) 4) Multiple Foreign Key attributes are not allowed in one table. (T/F) 5) Multiple doctors can share the same Employee ID. (T/F) 6) For any patient visit, a room must be assigned. (T/F) 7) Patients' visit(s) to this clinic can be related to multiple diagnoses. (T /F) 8) A Foreign Key attribute must always be required for any table. (T/F) 9) Diagnosis is a Primary key in the Diagnosis Table (T/F) 10) The Patient Table does not have any Foreign Key (T / F) Patient Doctor PK Patient ID PK Employee ID Visit PK VisitD FK Patient ID FX Employee ID VisitDate Room PK Room Number Room Number Diagnosis PK Diagnosisi FK Visit Diagnosis