An analogy, a dictionary definition and an in depth analysis can be used as a hook.
Answer: Options 1, 5 and 6.
Explanation:
An informative essay is the one which is written to give some kind of information to the readers of the essay about the topic about which the essay has been written.
The beginning of the essay can be done in many ways. Some of those ways are a definition of the concept that has been take from the dictionary, an analysis done about the topic which is the examination of the concept of the topic or an analogy can also be used.