Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to write a mystery story [title] Understand the distinction between the mystery genre and the thriller genre. [step] Mysteries almost always begin with a murder. The major question in a mystery is who committed the crime.

Ending1: If anyone observed a murder, the police then likely knew who committed the crime. However, the agent may then guess and decide to not reveal who committed the crime. Ending2: Usually, mysteries are confused when the murders take place together. Mystery authors will suddenly work together to gather the information and therefore report on the murders. Ending3: Thrillers usually begin with a situation that leads to a major catastrophe, like an assassination, a bank robbery, a nuclear explosion, etc. The major question in a thriller is whether or not the hero can prevent the catastrophe from occurring. Ending4: When people murder suspects, the detective has to believe the suspect was committed at a later date, and later on, the murder will be discovered. Mystery authors often use tales of discovery rather than mystery to shift everyone's perception of something.

Answer format: ending1/ending2/ending3/ending4