In Drupal 7, I have defined a new content type which has a checkbox field . The idea is that when a user chooses option A and submits the content, the system does something after the creation of the node, say, send an email to the webmaster and if the user choose option B or C while creating the content, the system do nothing. 

I've had difficulty to expose the select field result to a [Rules][1] Condition and I'm even not sure whether it is possible, so appreciate your help. 

 


  [1]: https://www.drupal.org/project/rules