Since you can use macros with forms, I would use a macro for the recipient emails field. I do not know what the question and option fields are but I will assume the answers will be a radio buttons field with some set of answers defined. So, you can define the the
name;value pair as
answer;email address. Sample screen shot.
And then, use the field macro in the recipients setting - screen shot. When the visitor will submit the form, the value part of the pair is saved in the DB and used by the macro to get the value - which will be an email address,