题目内容：
根据下列材料回答第题：
Passage Five
What can you do to recall your dreams more often and interpret them more clearly? The experts offer these suggestions:
Develop an idea. Before you go to sleep, consciously think about a topic or a person you’d like to dream about. Raise a question that’s troubling you and see how your dream responds to it.
Keep track. Next to your bed, place a pen and some paper, or a tape recorder or a laptop(笔记本电脑) , to record your dreams as soon as you wake up.
Try to wake up naturally, without the help of an alarm clock or barking dog that can interrupt your dream cycle. If your schedule doesn’t allow you to sleep in during the week, begin your dream journey on a weekend or during a vocation.
Wake up slowly. For the first moment after you wake up, lie still and keep your eyes closed, because your dream may be connected to your body position while you slept. Try to recall the dream and then store it in your memory by giving it a name like “Late for an Exam” or “My Dare with Ashley Judd” when you rise, immediately wrote down as many images, feeling and impressions as you can.
Connect the dots. To better interpret your dreams, try to make connection between your recalled dreams and recent events. Do you recognize people from the present or past? Can you detect any themes from the dream? Look for partners over several dreams that might help explain an individual dream.
Change the outcome. If you have nightmares happening again and again that make it different to sleep, try to change the endings. Once you wake up from a bad dream, imagine a change in the action to create more positive outcome. If you are trapped, try to fly. In your dream, you can do what you want!The passage advices you to” wake up slowly” ______.
A．because dreaming usually happens not long before you wake up
B．because sleeping posture may be related to your dream
C．so as not to connect your dreams
D．so as not to have a nightmare
