"The introductory paragraph of (introduction to) the essay is usually written by a combination of some strategies:
(i) mentioning the topic of essay or opinions given in the instruction; (ii) explaining why the topic is either interesting or important; (iii) giving some general information or statements related to the topic; (iv) stating the purpose of essay or defining the structures of other paragraphs."

Now as for this topic, some of these strategies are used. Can you complete the following sentences as points which can be given in the introduction by guessing the incomplete words.

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strategy iii

Of late the matter of public has become a growing concern, especially in places with large population.

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strategy i

Crime is a factor this (public safety) increasingly.

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strategy iv

This essay attempts to address what may cause and tackle activities in large major cities.