Concept:An indent is an order for goods placed through an agent on the principal's behalf.
The principal may either name the supplier or allow the agent to choose.
Explanation:Here, the supplier is determined by the principal.
So the agent is not free to select any other source.
The agent must buy only from the supplier specified by the principal.
This arrangement is known as a closed indent.
It is the opposite of an open indent, where the agent chooses the supplier.
Because the option is worded as "closed shop indent", it represents the same idea.
Tied shops and ring trading do not match this agency-based buying system.
Thus, the correct option is the one that indicates a closed indent.
Answer:B. closed shop indent