There are 3 societies A, B, C. A lent cars to B and C as many as they had Already. After some time B gave as many tractors to A and C as many as they have. After sometime c did the same thing. At the end of this transaction each one of them had 24. Find the cars each originally had.

• A. A had 21 cars, B had 39 cars & C had 12 cars
• B. A had 39 cars, B had 39 cars & C had 12 cars
• C. A had 39 cars, B had 21 cars & C had 19 cars
• D. A had 39 cars, B had 21 cars & C had 12 cars