Note: Answer Both Part A and Part B A. Explain Foreign Key with suitable example. (1 Mark) B. Construct an ER Diagram for a local garage having following details : (3 Marks) For each customer, we want to record the (unique) name, the customer address, and the contact phone number. For each vehicle, we want to record the unique vehicle's identification number (VIN), and the vehicle's make, model and year. For each repair job we want to record the description of the job done (maximum 200 chars), the date, and the total dollar cost. A repair job may involve zero or more parts (like, e.g., "windshield wipers", "battery, etc.) For each part we want to record its (unique) part number, the part name and its cost. In addition, note that: Each vehicle may have 1 or more repair jobs. Each customer may be the primary owner of 1 or more vehicles. Every vehicle has only one primary owner. Questions: identify the Entities Identify the relationships Identify the key attributes for adding constraints. Identify weak entities and relations with cardinality and participative constrains Draw only a complete ER diagram. Maximum size for new files: 100 MB