What is defined as a crime against property involving forced entry or exit?

The correct choice refers to an act that legally constitutes a crime against property, specifically involving the unlawful entry into a building or structure with the intent to commit a crime therein, typically theft. Burglary is characterized by the act of breaking and entering a dwelling or structure with the intent to commit an illegal act once inside.

In contrast, other terms like theft refer to the act of unlawfully taking someone else's property with intent to permanently deprive the owner of it, but it doesn't necessarily involve the aspect of forced entry. Robbery involves taking property from a person through force or intimidation, and breach of contract relates to failing to fulfill a legal obligation outlined in a contract, which does not pertain to physical entry or property crimes.

Therefore, the term burglary is specifically defined by its elements of both unlawful entry and the intention to commit an illegal act, making it the most accurate answer to the question posed.