I believe it's the answer is A
It’s crazy i don’t even know if this really
Tag is the most basic and the most prevalent form of graffiti. ... Tag is a stylized personal signature and contains graffiti writer's name, also known as a moniker. Graffiti writers often tag their pieces, following the practice of traditional artists who sign their artwork.
Source: https://www.widewalls.ch/magazine/10-graffiti-terms/tag
hope this helps :) :)
Answer:
To me his words mean that although he may have been racing against people with more experience, he didn't feel at a disadvantage. He felt as though he was their equal, because age doesn't always matter.