Answer:
Standard American English.
Step-by-step explanation:
'Standard American English' is characterized as the variety of English language that is contemplated as the standard or model for all the educated writers as well as speakers in America. This is the standard of English language that is followed uniformly in entire United states. All the professional communication, schools, colleges, etc. in America substantially accepts, recognizes, and adopts this model and its phonology, grammar, punctuation, etc, without any flaw. Thus, 'Standard American English' is the correct answer.