Please answer the following question: Read the article and select the best answer. Article: Who's building the new China? It's not the factory owners or the business men and women of China. It's someone else. We see them every day, They work day and night in the terrible working conditions and weather. They build the roads, the theaters, the cinemas and the supermarkets. They even clean up our rubbish. They are China's migrant workers . More than 140 million workers have left their homes in the countryside to look for jobs in big cities all over China. They hope to be rich, but they realize they have many difficulties in making enough money. And one of the difficulties that these workers have is the pride and discrimination from the people in cities. When night falls, everywhere I look I see the sad faces of the migrant workers. Many are living far away from those whom they love. Yes,they dress differently, they speak differently, and they have different habits, but they work hard .The people in cities regard them as outsiders, and most governments refuse to give them medical care and public schooling for their children. If China hopes to move into the future, many things need to change. The first is discrimination! We need to stop our discrimination against the migrant workers of China! They may not make as much money as some people in cities, but they are good honest people just trying to _ this game of life. These workers are very important and necessary to China's economic development and have become an important force for the change of Chinese society. They are building the new China, so we should help them. Question: What does the report mainly tell us? . Options: A: Though China's migrant workers work hard, their condition is terrible. B: The condition of China's migrant workers needs to be changed for China's development. C: The people in cities aren't polite to the migrant workers. D: China's development only depends on the migrant workers.
A:
B