I would say the first graph is more closely matches the appearance to the ocean floor.
Explanation:
For the ocean does have points that go up in the gong to the ocean floor and with the second on going up and down constantly looks unnatural. The first one looks more natural with it going up at the one point and it staying constantly low.
The answer is D i think this because the supply and demand means that if there is more demand for something they will need to supply it more which would mean the opium farming would go up!