What offense is committed if someone enters an unlocked RV and takes a cellphone?

The correct answer is theft. To commit theft, a person must unlawfully take someone else's property with the intent to deprive the owner of it. In this scenario, entering an unlocked RV and taking a cellphone demonstrates the intention to permanently or temporarily take the property from its owner without consent, thus satisfying the elements of theft.

Burglary of a habitation specifically involves entering a structure with the intent to commit a felony, theft, or assault. In this case, since the RV was unlocked, the act does not meet the criteria for burglary because there was no unlawful entry involved; the real offense is the taking of property, which is categorized as theft. Trespassing typically involves entering a property without permission, but since the RV was not locked, this does not apply here. Robbery requires the use or threat of force, which is not present in the act of merely taking the cellphone from an unlocked RV. Therefore, theft is the most accurate classification of the offense committed.