【单选题】

Questions 11 to 14 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.
Which of the following statements about MatthewBrady is correctA．He took pictures ofAmerican Independence War.
B．He invented self-developing film.
C．He was a very famousAmerican scientist.
D．He made portrait poses very popular.