“Call the witness”, said the magistrate.

The magistrate requested to call the witness.
The magistrate begged for calling the witness.
The magistrate ordered to call the witness.
The magistrate prayed to call the witness.

The correct answer is C. The magistrate ordered to call the witness.

A request is a polite or formal asking for something. A beg is a humble or earnest request. An order is a command or instruction to do something. A prayer is a solemn request or entreaty addressed to God or a god.

In the given sentence, the magistrate is using a formal tone and is in a position of authority. Therefore, it is most likely that the magistrate is ordering the witness to be called.