Thanks for the question! So remember what the passage is telling us: when we use a blender to whip cream, it’s not good. We get this thick, velvety substance instead of fluffy whipped cream on our pies or ice cream sundaes or whatever.
So now what does (A) tell us? It tells us that based on the passage, we can say that cream that has been whipped ineffectively generally becomes a thick, velvety substance rather than fluffy whipped cream. Well, we know that it does when we use a blender. But can we extrapolate from that and say that generally, it’ll be a thick, velvety substance? No, we can’t. For example, maybe generally speaking, it turns into a soup-like thing, or evaporates, or forms a brick, or some other disaster that could happen. There are a lot of other possibilities out there, and so we can’t say that just based on one form of presumably ineffective whipping, that generally speaking, ineffective whipping will result in a thick, velvety substance. So (A) isn’t supported by the passage and is incorrect.
Hope this helps! Feel free to ask any other questions that you might have.