Why does the author mention “long, grueling hours without sleeps” in paragraph 4?Đoạn văn35/35Why does the author mention “long, grueling hours without sleeps” in paragraph 4?To contrast the reality of a flight attendant’s job with most people’s perception.To emphasize the difficulty of working as a plumber.To discourage readers from choosing a career as a flight attendant.To show that people must work hard for the career they have chosen.Giải thíchĐáp án A