Which of the following class x declarations will successfully assign to l the length of the first argument passed to its main$()$ method?

$($Note: you may assume args has a length $>=1)$

class x $\{$ main$($String$[]$args$)\{$int l $=$ args$[1].$length; $\}\}$

class x $\{$ main$($String$[]$args$)\{$ int l $=$ args$[1].$length$()$; $\}\}$

class x $\{$ main$($String$[]$args$)\{$ int l $=$ args$[0].$length$()$; $\}\}$

class x $\{$ main$($String$[]$args$)\{$ int l $=$ args$[0].$length; $\}\}$