A manufacturer sells an item to a wholesaler and makes a profit of 10%. The wholesaler sells the same item to a retailer at a profit of 12%, The retailer sells the same item to a customer at a profit of 15%, If the customer paid ₹21,252 for the item, then what was the cost price (in ₹) of the item for the manufacturer?

A

18,000

B

15,000

C

12,500

D

17,500