A、They were interested and expressed their thoughts via e-mail. B、They willingly subscribed to her podcast. C、They felt surprise

M: I know you got into podcasting pretty much at the beginning. How did you first hear of it?
W: I was a reader of blogs, and I was aware that some bloggers were starting to attach audio files. That excited me. (22) I read a newspaper article early which mentioned podcasting and I started to look into it. But I was busy with work, so I sort of forgot about the idea for a while.
M: But you came back to it and started your own podcast early in 2005.
W: That’s right. In January, by then all the tools were available, and I had enough free time to devote to my own podcast. Of course I didn’t know if anyone would listen to it, but just being able to broadcast something was enough for me.
M: Did you get any reaction from the public?
W: Yes, I was surprised and gratified to find that not only were people listening, (23) but  they were interested enough to e-mail me with their thoughts on what I’d said.
M: What do you find to talk about?
W: (24) Current affairs, music, travel, and the things I’m interested in. I must admit that I’d always had ambitions to have my own radio show. With podcasting I found that I could have just that, my own show three times a week.
M: At the moment this is just a hobby, but do you see yourself making money from podcasting in the future?
W: No, not really. I know that some podcasters are talking about charging a subscription to their podcasts, but I like the idea that it’s for free. (25) If you start charging people for something they can start making demands on you, and I like to be able to do and say whatever I want.
22．How did the woman start to look into podcasting?
23.What was the public’s reaction to the woman’s podcast?
24.What do we learn about the woman’s podcasting?
25.Why does the woman refuse to charge for her podcasting?