【正确答案】
C
【答案解析】[听力原文]
M: Jane, I heard you own an "idea" company which sells people creative ideas to better their life.
W: Yes, I do.
M: Good! But first of all, would you please tell me who is the guy by the window?
W: Oh, he! {{U}}He is my guard, an artificial man{{/U}}. He weighs less than twenty kilograms.
M: What is he exactly responsible for?
W: {{U}}He just sits there and keeps me safe. Burglars will go away when they see my guard sitting by the window{{/U}}. They assume that someone is with me. I feel secure when I am at home alone.
M: That's a terrific idea! Are all these guards appear similarly?
W: {{U}}Every guard is available in three styles: light skin with blonde hair, light skin with gray hair, and dark skin with dark hair{{/U}}.
M: Wow, tell us more about his clothes.
W: The artificial guard comes with two sets of clothes: a jogging suit and a business suit.
M: So Jane, tell us how much is this incredible product.
W: {{U}}You can get such a guard for just ninety-nine by ringing the number on the screen now{{/U}}.
M: Unbelievable! It must be affordable for most of the common citizens.
What are they mainly talking about?
[解析] 主题概括题。对话开头部分女士就说那是一个人造人，有他在窗边，入室盗窃犯就会离开。故选C。