Answer:
I would say A Students in the same social groups tend to wear clothes similar to each other.
Explanation:
A covers points made in the passage like that students can tell from each others clothes a bit about each others interests and that includes the athletes wearing sports uniforms. I also think D is true, I wanted to stand out with my mohawk and look unique, BUT at the same time, it also signalled to others that I liked punk so again, that leads to answer A.
