单项选择题

Questions 15 to 17 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.

Who was Miss Fanny Jackson

A.The only daughter of General "Stonewall" Jackson.
B.A little-known girl who sold her father’s papers to Robert Spring.
C.Robert Spring’s daughter.
D.An imaginary person created by Spring.