Option 1 -> Professional association refers to the existence of a representative body that regulates the profession (like ICAI), not the examination requirement.
Option 2 -> Restricted entry means entry into the profession is limited to those who meet specific qualifications, such as clearing prescribed examinations, which is exactly what the question describes.
Option 3 -> Ethical code of conduct relates to the rules and standards of behavior that professionals must follow, not entry requirements.
Option 4 -> Service motive refers to the commitment to serve clients and society rather than just profit-making, which is unrelated to examination requirements.
Hence, Option 2: Restricted entry -> The requirement to clear a specified examination creates a barrier that restricts who can enter the profession of chartered accountancy. Only those who qualify through the prescribed examination can practice, making it a restricted entry profession -> correct