Answer:
Option A, The treasure was the rewards that come from working hard
Explanation:
There was no treasure in the ground infact the farmer just played a trick with his sons to make them work on field.
While looking for treasure, the framers' sons ploughed the entire farms. This led to a very good yield at the end of farming season. By selling the farm produce, the sons got a lot of money.
The farmers aim was to make his sons earn money by hard work.
Hence, option A is correct
