If the correct cpt code is not known and narrative description or the procedure or service rendered can we use for a third party claims true or false?

Review returned or denied claims to ensure that the procedure codes reported are correct 

if there is a coding error, prepare and submit a corrected claim 
>Errorrs should always be corrected, but will not always eliminate an accusation of fraud 

when there is no coding error, prepare an appeal if there are grounds to do so

Ithink the correct answer is c