Option (ग) is correct because the provided text describes how the boys enjoyed the process of hearing imaginary complaints, calling witnesses, taking their testimonies, and giving a decision (फैसला सुनाना). This entire process is the experience of doing justice (न्याय करना), which they liked so much that they started playing the game daily. Options (क), (ख), and (घ) are incorrect as the text does not mention them as reasons for their daily involvement.