. WHY DOES THE AUTHOR MENTION “LONG, GRUELING HOURS WITHOUT SLEEPS”...

53/. Why does the author mention “long, grueling hours without sleeps” in paragraph 5?A. To emphasize the difficulty of working as a plumber.B. To contrast the reality of a flight attendant’s job with most people’s perception.C. To show that people must work hard for the career they have chosen.D. To discourage readers from choosing a career as a flight attendant.