Edit Survey "Need to select more options" Message to be in a Different Language

Content

I'm trying to include both the French and English version of a survey in one survey. The reason why I'm doing this is because we don't have an accurate method of targeting customers based on language. So I have both the English invitation message followed by the French invitation message. For the first survey question, I ask the customer to choose between English and French then direct them to the questions in the corresponding language. 

The only issue is that the error message "Need to select more options" for mandatory questions that were not answered is in English. I need to  edit this default message to be in both English and French.