1. Given a diagram depicting the MVVM architecture: UI Controller (activity/fragment with listeners) a. Determine which parts of the diagram act as Model, ViewModel and View? b. Describe the changes that occur if developers use the repository pattern?. Also briefly explain the function of the repository pattern? c. Describe at what level the room library and retrofit are located? d. Describe the changes that occur if developers use the LiveData feature?. Also briefly explain one of the advantages of the Live Data feature? 2. Name the components of the Android Sensor Framework and explain the role of each component so that apps can read sensor readings. Provide a short, concise, clear and complete explanation, including the function that needs to be called and the purpose of that function?