The main purpose of literary writing can often be discovered through a careful study of the content. After studying the content of the message in the above text, we can deduce that the author's main message is to;
The purpose of the author's writing is to caution the audience on the need to be careful as they use the information contained in some websites.
This is deduced from his reminder that since webpages come from different sources, the authority of the informants should be investigated before accepting their ideas.
Therefore, sentence A describes the author's main purpose.
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