Exposition, the beginning of the fairy tale<span> is called exposition.</span>
Answer:
Why is that a very lucky day for me.
Simple, put the research source in your own words. For example, I were to put your question in my own words I would do this: How can I use researched information without quoting it word for word?
The correct answer is the second option - <span>to occur unexpectedly and have destructive or harmful effects.
</span>Here, the word struck is just a past form of the verb to strike, meaning to happen unexpectedly and have dire consequences, like an earthquake can hit California, in this case. The final definition is a noun, and does not fit in the context of the original sentence.