Text: . (6) Think about the time you spend in the classroom and at home slumping over a chair or a couch, and consider the long-term effects of bad posture. (7)Common side effects of posture and bad ergonomics are backache and shoulder-blade pain.
Question:
Which of the following sentences would be the best transition between sentence 6 and sentence 7?
A. However, stress can even cause backache and shoulder-blade pain for teenagers.
B. Today, some scientists research how to make the work environment more comfortable.
C. Next time you leave your house, take only the books you need for the school day.
D. In the long run, bad ergonomics can cause pain or make you uncomfortable.
QUICKLY PLEASE