Which of the following code snippets will you use if you want to connect to...

$mail = new Zend_Mail_Storage_Pop3(array('host'

='example.com', 'user' ='user_name',

'protocol_used' = 'tls')); ?>

$mail = new Zend_Mail_Storag e_Pop3(array('host'

='example.com', 'user' ='user_name',

'connectTo' = 'tls')); ?>

$mail = new Zend_Mail_Storage_Pop3(array('host'

='example.com', 'user' ='user_name',

'ssl' = 'tls')); ?>

$mail = new Zend_Mail_Storage_Pop3(array('host'

='example.com', 'user' ='user_name',

'protocol_used' = 'ssl/tls')); ?>