I need full and correct answer please with your own words, thank you

Learning Outcome(s): A. Briefly define the term Waterfall model? And list the phases of the development process in order they are done? [2 marks] What relationship is appropriate between the following classes: aggregation, inheritance, or neither?12 marks] Understand and be able to design and implement programs using object oriented programming concepts like: encapsulation inheritance polymorphism, abstract classes and methods B. a. University-Student b. Student-Teaching Assistant c. Student-Freshman d. Student-Professor e. Car-Door f. Truck-Vehicle g. Traffic-TrafficSign h. TrafficSign-Color