Challenge 1 / 1

Check out this route & controller:

#[Route("/user/{username}")]
public function profile(): Response
{
}

Which of the following is true?

You must have an argument named exactly $username in your profile() method.

You "can" have an argument named $username in your profile() method... but it's not required.

You "can" have an argument with any name in your profile() method... but it must be the first argument.

You are allowed to have an argument with any name in your profile() method: the first argument will receive the {username} value if it exists.