Challenge 1 / 1

Check out this route & controller:

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

Which of the following is true?

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

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

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

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.