To eliminate indiscipline among children, a combination of personal contact between teachers and students and creating a moral and cordial school environment are effective strategies. These approaches focus on building positive relationships and fostering a supportive atmosphere that encourages discipline naturally.
- Option (1): Personal contact between teachers and students: While personal contact is important, it is not sufficient on its own. Building strong relationships with students helps create trust and understanding, but it needs to be complemented by a conducive environment.
- Option (2): The school environment should be made moral and cordial: Creating a positive and supportive school environment is crucial, as it influences students' behavior and attitudes. However, this alone may not address all aspects of indiscipline without additional measures like personal interaction.
- Option (3): Children should be given appropriate punishment in school: While punishment can sometimes deter misbehavior, it is not the most effective long-term solution. Over-reliance on punishment can lead to resentment and resistance rather than genuine discipline.
- Option (4): Both (A) and (B): This is the correct answer, as combining personal contact between teachers and students with a moral and cordial school environment addresses both relational and environmental factors. These approaches work together to promote discipline by building trust, understanding, and a positive atmosphere.
Answer: $\boxed{\text{Both (1) and (2)}}$