The is primarily responsible for the identification, diagnosis, and design of the treatment plan and curriculum for children with communication, language, and speech disorders.

The answer is a speech-language pathologist.

Explanation:

Speech-language pathology is related to the health professionals, as well as it is related to sciences like audiology, behavior analysis, optometry, occupational therapy, physical therapy, among others. SLP is characterized by the evaluation, as well as treatment concerning communication disorders, speech disorders, and language disorders, among others.

There is a misunderstanding related to SLP and it consists of the idea that speech-language pathology is restricted concerning different treatments of  articulation disorders. However, speech-language pathology is mainly related to aspects of the speech, language, and voice issues that are involved in communication.    

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you should think about the answers you give and expect the same form your questions.