单选题 How to avoid plagiarism? Read the following suggestions and decide which are necessary to avoid plagiarism. Activities: i) Whenever you use or mention the work of others, make sure that you acknowledge it fully. ii) If you use a direct quotation, acknowledge the originator of the work. iii) If you paraphrase (rewrite in your own words) the work of others, acknowledge the originator of the work. iv) If your work is the result of collaboration with others, make sure that you acknowledge their input. v) If you refer to your own past work, supply a full citation for it