Questions 5 to 8 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.
Hamburger places usually play fast background music because ______.

A．By good sense of water waves made by quarries.
B．By good sense of smell and electrical magnetic power.
C．By good sense of light.
D．By good sense of blood.

A．A man and a woman should follow every of their own impulse respectively.
B．A good marriage takes some level of compromise between the husband and the wife.
C．A man and a woman should both have to endure dreadful self-sacrifice of the soul.
D．A man and a woman should stop growing or changing.