It is possible to send an email depending on the response of a field.

1. Go to the form
2. Edit
3. Email Notifications

       4. Activate e-mail notification

       5. In the send condition

       add the condition you would like. Here is an example:

$ret = "False";
if($context.GetSelectedBusinessFieldListValuesTranslated('TVX_PVDF_Envoyeremail') -eq "Oui") {$ret = "True";} 
else  {$ret = "False";}
"$ret";

You have to replace the field and replace the "Oui" with the response on which you would like to send the email