Which statement best describes the treasure left to the sons/by the farmer?
A)
The treasure was the rewards that come from
working hard.
B)
There was no treasure, the farmer wanted to trick his
sons.
The treasure was the money they got when they sold
the farm
D)
The treasure was a chest of gold they found buried
on the farm

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