You are required to design an application that organizes people residing (syne) in buildings. The application has a number of buildings, in each building there are apartments (es), and each apartment has a family residing in it. Assuming that apartments are one of two types: either rented (Galim) or owned (el), which object-oriented concept you will use to define the two types of apartments in your application? Select one: O a. Encapsulation O b. Composition O C. Abstraction O d. Polymorphism O e. Inheritance