Mass media are different from other forms of media because of: O A. the presence of video and words together.
O B. the size of the audience.
O C. the means of conveying information.
O D. the education of the producers.

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answer: c

explanation:

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.