题目内容：
根据材料，回答问题。I'm really nervous opening Chatroulette (a website). I don't know if I'm more scared of the possibility of coming face-to-face with a naked guy doing improper things, or the possibility of having to speak to someone normal. But it's that uncertainty that's caused the "game" to explode into an Internet phenomenon.
So, I hesitantly click "play". My face appears in a small box to the left of the screen. I'm a 22-year-old guy, wearing jeans and a T-shirt, and sitting in my warmly lit bedroom--not too threatening, I think. Believing I look welcoming and friendly, I open all features: visual, audio and text. The user can disable these at any time if they feel uncomfortable.
Quickly I find myself face-to-face with my first"partner". A guy with glasses is staring back at me. He looks like he spends too much time in front of the computer. "Hey," I say, "how are you going?Good." says the guy. Sensing that he was not going to be very talkative, I hit the button.
Just like that, I'm thrown across the world into someone else's bedroom. This time it looks like a middle-aged woman I must have hit gold because 85 percent of Chatroulette users are male,according to the Wall Street Journal. She's wearing sunglasses and smiles back. Before I can even say a word, she "nexts" me. "WHAT?! "
Then, I fly through the Internet and arrive at my next partner. My nightmare, a man is sitting in his computer chair half-naked taking off his pants. Argghh! “Next, next, next! " For the next 30 minutes I keep my cursor(先标) over the "next" button My experiences continue to be short, shocking,and largely uninteresting. I discouragingly hit "next" after seeing another naked man, and decide to end my session and close the window. This wasn't "the new social media experience" I was hoping for. Maybe it was just a little bit too random.
It is the author'sthat leads him into Chatroulett. A．curiosity
B．unwillingness
C．enthusiasm
D．ignorance
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