Who was Jack threatened by?

The correct answer is that Jack was threatened by a man with a gun. This choice indicates a specific and immediate danger, which conveys a serious level of threat that is compelling and clear in narrative contexts. In many stories or scenarios, the presence of a weapon, particularly a gun, heightens the tension and drama of the situation, making it a focal point for the character's fear or vulnerability.

This choice is typically used in narratives to create a vivid image of danger that can evoke a strong emotional response from readers or listeners. The specificity of the threat helps establish the stakes in the narrative, illustrating the gravity of the situation Jack finds himself in.