I think they mean how can a person born deaf learn to make speech if the above quote says this individual will not be able to speak a language. I think the answ

I think they mean how can a person born deaf learn to make speech if the above quote says this individual will not be able to speak a language. I think the answer to that is it's more "they won't be able to make speech like a person born with hearing would do by listening and naturally learning" rather than "they won't be able to try to make sounds with their voice they are not able to process auditorily".