A, disapproval. With the little information I am given I believe the answer is A.
Black argued against the majority opinion by stating that the school is
not a platform for free speech. This is an attitude that has been
continued into the legal system today, to prevent the school system
becoming a legal and governmental playground.
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Well saying dunno is an error in formal/academic writing. In academic writing you would have to write, i do not know, though.
Answer:
sorry I haven't read it BUT I've heard about it