What is the woman unable to rememberA．Why her pare

单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation.

What is the woman unable to remember

A．Why her parents wanted to go to Gettysburg.
B．Why her family’s vacation plans changed ten years ago.
C．Where her family went for a vacation ten years ago.
D．When her family went on their last vacation.