The correct option is C It represents how Indonesia, its resources and its people helped in making the Dutch become a great power in the world.
The above image represents how the Dutch became one of the most significant colonial powers at the time through Indonesia. Hence, the reference to it being the "Most Precious Jewel" of the Dutch Empire.
Over time, Indonesia became the leading producer of quinine, pepper, rubber, coconut, tea, sugar, coffee, and oil. The profits fed the Dutch industries and all this was possible because of the government's exploitation of the native people and their land.