2.       Jay fainted during a race in PE class this morning. . Wethought he fainted because he was too tired. Why did we"think so"? Because Jay worked two part-time jobs afterschool. After we took him to the health center, the nursealso said to us, "Jay is in poor health, and he's too heavy."That was true. Jay ate too much junk food and seldomexercised.
       The nurse told Jay about that after he woke up, but heignored. He still ate lots of meat. He couldn't stand ameal with only a little or no meat.And he still did nothingbut watch TV in his free time. A week later, he went to thehealth center again during English class. This time, thenurse asked Jay to start a healthy diet right away and do someexercise every day, or he might be sent to the hospital nexttime.
       Now Jay really knows the importance of health, so helistens to the nurse's advice. He hopes to become a healthyperson, and he doesn't want to go to the hospital. 
【題組】1. What does "think so" mean?
(A) Jay was sick because he ate too much junk food.
(B) Jay was heavy because he seldom exercised.
(C) Jay fainted because he was too tired.
(D) Jay went to the health center because he didn'tlike PE class.