A、The quality of life. B、The local economy. C、The friends and relatives. D、The natural beauty. A短文指出，研究发现，选择住处时，生活质量是一个比经济学家可以想象

Where we choose to live can have a huge impact on our life. Living in an unfriendly neighborhood, or one where residents move often, can make it harder to find childcare help or other support. On the other hand, settling in a peaceful rural hamlet may seem like a great way to balance your life—until you realize you can’t stand the slow dial-up Internet access any more. A recent survey tackled the question of what bonds us to the places we live, and its findings suggest(16)the quality of our life is a more influential factor than economists might think. Given a choice, most people don’t care as much about the local economy as they do about the social offerings, physical beauty and openness of a locale, says a recent survey of about 14 000 people in 26 communities by Gallup. Those intangibles— how warm, welcoming and fun a community seems to be—are apparently why people in Miami tend to like it even more than they did last year. Residents of Minneapolis had an above-average regard for their town.(17)Even in hard-pressed Detroit, citizens are liking life a little more than in recent years, perhaps because of better parks, green spaces and recreational opportunities.(18)In my case, living in the Pacific Northwest is a tradeoff(折中). My town of Portland offers wonderful outdoor-sports access, edgy culture and natural beauty.(18)However, as one who has worked in journalism and publishing all my life, I find many of my career contacts are a continent away, in New York.
16. What is the most important factor for people to choose the places they live?
17. What makes people in Detroit like their life more?
18. What can we infer about the speaker from the passage?
19. What does the passage mainly talk about?