One
My wife agrees with you, but she's looking at teens and not older women. If you look up fashion designers you find out that individuality is valued. Fashion is certainly not A. And it is not C. I would say nothing is eternal in fashion although it can be recognized by period. For example it is easy to identify a 1920s flapper. We know what they looked like and we will always know, but it is not eternal. I don't think any trend in fashion is classic for either meaning of the word (era or well respected). I think this is a question for your notes. But you are choosing between B and D. By the way sociologists agree with B.
Two
I have no real idea but I can eliminate a couple of them D designs things that are bell shaped. Christian Dior did really neat things that emphasized the female lines and curves. Elegant. But not the answer.
Mary Quaint developed the Mini Skirt and she is the likely choice. Again this little bit is hidden away in your notes. But try her name through the notes. It will be there.
Answer (guess): A
Three
I think you are going to have to choose C here. But that is connected to E. Women were already dressing quite differently even before the end of the war. You couldn't be a welder and come to work in a long fashionable rayon skirt.
All of these are at best educated guesses. All I know (like most guys) is that in winter, you wear what is warm and in summer you wear shorts and sleeveless shirts. Not much to go on. I learned a lot, but I don't think I helped you much. If you get these wrong you can blame me and I'll owe you one.