Answer:
Higher wages
Explanation: This question is attempting to explain the reasons for migration. Push and pull factors play a role in the decision of human beings to leave one place or country and migrate elsewhere.
A centrally planned economy oppose these basic economic characteristics- Property owned by private individuals, Market pricing determination by supply and demand forces, encouragement of competition among the companies and providing a wide range of choice to consumer.
Location by definition means "a particular place or position"... your answer to your question is True.
Riis states that if the nation does not wipe out slums, the slums will wipe out.
He see the battle against slums as a battle with poverty. He states that the battle must be won as fasts as possible, stating that the slums are the enemy of civilization.