content for logged in users

i m trying to add some content only for logged in users but getting errors unexpected T_STRING, expecting ‘,’ or ‘;’
i am not very advance with php, please help me with this scratch:

<?php
if ( !is_user_logged_in() ) {
    echo '<div id="item-nav">
<ul>
<?php bp_get_options_nav(); ?>
<?php do_action( 'bp_group_options_nav' ); ?>
</ul>
</div';

}
?>