Mark is a child with a hearing impairment. Which of these professionals has the greatest responsibility for helping him reach his potential in speech reading and speech production?

Speech therapist

Explanation:

Speech therapist is the person who proved therapy and learning related with communication and communication disorders.They deal and develop human communication through therapeutic ways of improving congnitive skills, language, oral skills etc.        

According to the question,Mark should consider taking help from speech therapist because he would receive therapy for enhancing and development of his speech reading,understanding and communication .

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