The correct answer is 2) Idiom
Idioms are literary devices and expression used to portray thoughts and ideas in a stylized and interesting, yet, non-literal manner. In the given sentence, the policeman is not implying that he literally "lay down the law". By "lay down the law" he means he had to take action and enforce the law. Another example of an idiom is the expression "under the weather". When someone says they are "under the weather", the meaning is not literal, what they actually mean is that they are sick or unwell.
"D" <em>make an inference</em>
When there are gaps of information, you usually want to look at the text and the information given to make an inference of what you think the author might mean/ what information needs to be in the context to make the text understandable. The author is trying to get you to make inferences and think for yourself.
I hope this helps!
~kaikers
Answer:
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Explanation: