Final answer:
The root 'mandat' in mandatory means 'order' or 'command', and it signifies something that is required or obligatory. In the context of the sentence, it emphasizes that the police must obtain a warrant before searching a private home.
Step-by-step explanation:
In the word mandatory, the root 'mandat' comes from the Latin word 'mandare' which means 'to order' or 'to command'. Therefore, the root 'mandat' in mandatory means 'order' or 'command'. In the context of the sentence you provided, mandatory means something that is required or obligatory, hence the idea of an order or command. For example, if something is mandatory, it is necessary and must be done. In the sentence, it emphasizes that the police must obtain a warrant before searching a private home, as mandated by the law.
Learn more about the meaning of the root 'mandat' in the word mandatory