Concept:Book-me-down is a simple credit arrangement commonly found among low-income earners.
Explanation:In book-me-down trading, the seller allows a trusted customer to take goods on credit.
The customer’s name and the amount owed are written down in a record book.
The customer then pays later, often in small instalments.
This method is popular among low-income groups because it does not require large deposits, formal contracts, or bank involvement.
It is highly used in local markets and underdeveloped regions where other credit systems may not be accessible.
Hire purchase involves regular payments and formal agreements, while club trading refers to group purchasing arrangements.
Therefore, the credit sales method associated mainly with low-income earners is book-me-down.
Answer:C. booking-me-down