Which crime did Mang Rodrigo commit after using the pig's meat?

The correct choice is malicious mischief because this crime typically involves an act of destruction or interference with another person's property. In the context provided, if Mang Rodrigo used the pig's meat in a way that caused damage, loss, or disruption to someone else's property rights, it would fall under the definition of malicious mischief. This can encompass acts that do not necessarily lead to theft but still negatively affect another's property.

The other options do not accurately describe the nature of the crime in relation to the use of the pig's meat. Theft involves unlawfully taking someone else's property with the intent to permanently deprive them of it, which does not apply if the act was more about damaging or misusing property rather than stealing it. Forgery refers to falsifying documents or signatures, which is unrelated to the context of meat use. Assault pertains to causing physical harm or the threat of harm to a person, which also does not connect directly to the misuse of an animal or its byproducts. Hence, the selection of malicious mischief correctly captures the action taken regarding the pig's meat.