Answer:
They needed to look strong enough to work so they would not be killed.
Explanation:
Those sick or too old automatically were taken to these gas chambers, and yes it is how it sounds. A gas chamber was a sealed room that was used for execution by poisonous gas. Some mothers used to pinch their children's cheeks to make sure they looked extra healthy. A horrifying way to die.
I believe D is the correct answer. If Japan (or any country) were to be hit with the largest natural disaster in recent history, it would most likely sway people away from migrating into the country.
Southern Africa is the answer to the question for sure.
