If you want to get the option list of the content type that you have created , then you can get the list as follows:
$content_field = content_fields(‘whatever_the_field_name_is’);
$allowed_values = content_allowed_values($content_field);
So the $allowed_values will give you the array of the option list with the key value association.
Note: The “whatever_the_field_name_is” is the field name that you had specified while adding the field, you can get the field name from your content type .