单项选择题

Questions 1 to 3 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.

What was the population of London at the beginning of the 19th century according to the conversation().

A. More than a million.
B. More than eight million.
C. Less than eight million.
D. Less than a million.

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