Which of the following is an example of an inchoate offense?

An inchoate offense refers to a crime that is not fully realized or completed but involves actions that demonstrate an intention to commit a criminal act. Conspiracy is a prime example of this type of offense, as it involves two or more individuals planning to commit a crime but not necessarily moving forward with the act itself.

In conspiracy, the individuals involved agree to engage in criminal behavior, which constitutes the criminal intent necessary for prosecution, even if they do not actually carry out the crime. This highlights the key characteristic of inchoate offenses, focusing on the preparation and intent rather than completion of a criminal act.

In contrast, the other options represent completed actions or specific offenses: theft, assault, and burglary. Each of these crimes involves the execution of an action that can be fully realized and therefore does not fit into the category of inchoate offenses.