What you are asking about is not currently a feature of FormsCentral. The two methods of sending the form data are:
Notifications: These can be set up for a form to send an email notification that can include the form data to a list of recipients that is defined in the Notifications tab of the Options page, this list would not be able to be controlled by anything in the form.
Reciepts: A reciept can be sent to the person who fills out the form, or more accurately to an email address entered into the form by the form filler (they could enter an address other than their own). But this does not satisfy your request and does not change based on form field selection, it will simply send the reciept to the email entered into the field you defined.