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.
The best and most correct answer among the choices provided by your question is the third choice.
The underlying theme of the short story "A Rose for Emily" by William Faulkner is evident in this line? <span>Alive, Miss Emily had been a tradition, a duty, and a care; a sort of hereditary obligation upon the town is CUSTOM VERSUS CHANGE. </span>
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I believe the answer is: A. <span>overcoming communication barriers
Communication barriers refer to every factors that prevent a communicator from delivering the core content of their information.
This could include things such as difference in language, difference in background experience, difference in culture, etc.</span><span />