1.Which of the following are the heuristics for the class diagram?

2.Suppose you are working on a software project for a car rental company. You need to create a UML class diagram to represent the classes and relationships in the system. The system should be able to handle the rental of different types of vehicles, including cars, trucks, and vans. Each vehicle has a make, model, year, and license plate number, and can be rented by a customer for a specified period of time. Based on this scenario, which of the following class diagram elements should be included?

3.In a class diagram, which of the following symbols represents an association between two classes?