【单选题】

Questions 14 to 17 are based on the following passage.At the end of the passage, you will be given 20 seconds to answer the questions.

Now listen to the passage.
Manufacturers have to spend ______ dollars for a ______-second commercial on network television.A．10,000; 15
B．100,000; 30
C．1,000,000; 45
D．10,000,000; 60