What do you mean please explain what you mean
B is the correct answer, they are 'targeting' their media, because they are searching for a specific audience, or looking for a target to pay the most attention to.
There is no bold portion in the sentence you gave
I would add some kind of punctuation between you and said.
I will prepare an excellent meal for you. Said the cook.
Answer:
Bradbury wrote this essential dystopian novel describing what would be the main threat to the future of culture: in the future censorship will reach the status of unnecessary if we can make no one bother to inquire, to worry about challenging their thoughts. In opening a book.
For many, this text is correct as a predictor of the contradictions of the modern era: in times in which the social mass is so plural, the media are more careful than ever to transmit messages that do not offend anyone, so they bet on a lowest common denominator that ends up suppressing the plurality of ideas and the development of knowledge. A radically anti-intellectual culture.
He wants the reader to be able to perceive this and not let technology consume it entirely. That he inquires and questions things.