In north Indian villages, which among the following is a practice where exchange of produce, goods, and services happen without the use of money, based on the caste system and customary practices?

Jajmani system

The correct answer is Option (4) → Jajmani system

Jajmani system: Non-market exchange of produce, goods, and services within the (north) Indian village, without the use of money, based on the caste system and customary practices.