Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.
Now, listen to the conversation.
Which compound noun form is NOT mentioned in this conversation

A．The aviation fuel is less harmful to the environment.
B．The aviation fuel is cheaper and safer than other fuels.
C．The ticket prices are getting low and people’s incomes are rising.
D．The number of British traveling places is more than double in the next quarter of a century.

A．Jobs created by the U.S. economy in October are less than the predication.
B．In the past three months, there are 225,000 jobs created.
C．Hurricanes in the American southeast bring some job opportunities in October.
D．The U.S. economy created 225,000 jobs in October.