The answer is B) textiles
The blinds have pulleys. To pull them up and down.
It would be because the world war 2.
After the world war 2, Germany's territory was divided into two block with different Ideology, the East German with communism ideology and the West German with the liberalist Ideology. They both build a wall called the Berlin wall to separate the two territories
They turned to the sea professions beacuse if you live near the sea and the desert its obvious that you should go towards the sea, to maintain a local economy and keep a population steady
The key difference is that the moon is farther away for the earth during an Annular eclipse.