What does the author mean by the sentence "Ever had a...

Câu hỏi: Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions.
[1] Dreams occur when we are experiencing REM (RAPID EYE MOVEMENT) sleep. We dream about two hours a night (six years of our lives). No one is sure why we dream, but some scientists, psychologists and religions have their theories. Scientist Jie Zhang proposes that dreams are our way of processing data about the events of the day. Psychologist Sigmund Freud suggested dreams allow our minds to express things we
don't think about when awake.
[2] Throughout history, different cultures have turned to religion for explanations. The ancient Greeks thought dreams were messages from the gods. They built special temples in which dreams were "kept". They placed the sick in these temples as they thought dreams had the power to heal. The Egyptians believed that gifted people could interpret dreams which were messages from God.
[3] Today, dream dictionaries have been developed to help people understand their nocturnal adventures. For example, dreaming of a shark represents a person who is greedy. You need to take care when dealing with this person. Dreaming of spiders means that you feel like an outsider and, if you dream of killing a spider, you are experiencing a period of bad luck. If you dream of eating macaroni, you need to save money and spend it wisely.
[4] There are dreams we share. Flying dreams often leave people feeling exhilarated. According to the dream dictionary, they mean that we are on top of the world and feel in control. Ever had a dream where you were walking around in your birthday suit? This is one people having silly or being made fun of. [5] How about falling dreams? The sickening feeling of plum through the air and then walking just before you hit the ground! (By the way, you won't actually die if you dream that you hit the ground.) This shows that you are anxious and insecure. You have lost control of the situation.
[6] Are dreams our inner desires, our minds making sense of their current circumstances, predictions of the failure or messages from the gods? Perhaps they have no meaning at all. As science is of little help in
clearing up the mystery, you will have to make up your own mind. Sweet dreams!
What does the author mean by the sentence "Ever had a dream where you were walking around in your birthday suit" ?
A. You dreamt you were not wearing any clothes.
B. You dreamt you were walking very fast.
C. You dreamt you were shopping for a new suit.
D. You dreamt you were having a birthday party.