The correct answer is A. 25 years.
A Panchayati Adalat is a judicial body at the village level in India. It is a forum for settling disputes between individuals or groups within a village. The members of a Panchayati Adalat are elected by the villagers.
The minimum age to become a member of a Panchayati Adalat is 25 years. This is because the members of a Panchayati Adalat are expected to be mature and experienced enough to handle the disputes that come before them. They are also expected to be familiar with the laws and customs of the village.
The other options are incorrect because they are not the minimum age to become a member of a Panchayati Adalat.