Which of the following is a crime of unlawfully taking a motor vehicle?

Larceny is defined as the unlawful taking and carrying away of someone else's personal property with the intent to permanently deprive the owner of it. When it comes to motor vehicles, unlawfully taking a vehicle falls under this category of theft. The act of taking a motor vehicle without the owner's permission is a form of larceny because it involves both the act of taking and the intention to permanently deprive the owner of their vehicle.

In contrast, robbery typically involves taking property from a person through force or intimidation, while burglary refers to entering a building with the intent to commit a crime inside. Assault involves causing physical harm or threat to another person, which does not relate to the act of taking someone else's property unlawfully. Therefore, the act of unlawfully taking a motor vehicle directly aligns with the definition of larceny, making it the correct answer.