The concept of class in modern Britain - survey

Hello I'm placing this questionnaire on my friends behalf:

"My name is Piotr. I am a third year student of English philology. I am　writing my BA thesis on the concept of class in modern Britain and I　cannot do it without performing a research on this issue. I am counting　on your help. This is an anonymous questionnaire for research purposes　only.
If you're from Great Britain, please fill it in. It takes 2-3 minutes.

Here is the link:　

Thank you for your participation."

I hope you'll help him as you have helped me!

Have done it. Very short.

One thread is more than enough, thank you.