Final answer:
In a trial, attorneys can treat a witness as hostile and ask questions relating to testimony already given during cross-examination, but there are limitations to asking about the witness's character or asking any question about the case.
Step-by-step explanation:
When an attorney cross-examines a witness at trial, there are specific guidelines they must follow. The correct answers to the student's question are:
- b) treat the witness as a hostile witness, but only if the witness demonstrates hostility or adversity against the questioning party's legal position, therefore allowing for a broader range of questioning techniques.
- c) ask only questions relating to the testimony already given by the witness to clarify or discredit the testimony.
Questions related to the witness's character (d) are generally only permitted if they are relevant to the case, such as in matters of credibility, and even then, there are limitations.
The attorney cannot simply ask any question about the case (a). Cross-examination must adhere to the rules of evidence and the judge's discretion to prevent irrelevant or prejudicial information from being introduced.