M: Excuse me, Alice, I've never used this place before. Can you tell me how to use the machines? ,F: What do you mean? These are the washing machines. Those big things over there are the dryers. ,M: I see. Do the machines have soap in them? ,F: No, of course not. You have to put soap in. Did you bring your soap? ,M: No, I don't have soap. ,F: Well, you can buy some over there. ,M: Thanks. OK, I have my soap. ,F: My god, you really bought a lot. Why do you need so much? ,M: I don't know. I want my clothes to be clean. ,F: But you can't use so much. The machines won't be able to remove the soap completely. On the contrary, too many bubbles trapped dirt, allowing bacteria to build up.
(A) M: I see. According to you, too much soap would produce few bubbles, so bacteria would then grow. (B) M: Excuse me, could you repeat the question? (C) M: You're absolutely right. Too much soap would produce dirt in the clothes. (D) M: Indeed, too much soap would require much more water to clean, though the machines can have them removed completely.
B