Which action defines indecent exposure?

Indecent exposure is legally defined as the intentional exposure of one's genitals in a manner that is deemed inappropriate and typically aimed at causing sexual arousal. The correct choice highlights that the act must be performed with the intent to arouse sexual desire, which is a crucial element of what constitutes indecent exposure under the law. This intent differentiates it from other forms of exposure that may not carry the same legal implications, such as artistic expression, which can be more subjective and context-dependent.

Other options do not encapsulate the essence of indecent exposure as they either lack the crucial intent aspect or involve contexts that do not meet the legal thresholds for the offense. For example, artistic purposes may involve public display without the intent to provoke arousal, while being under the influence does not inherently imply the act is indecent without the specific intent to elicit sexual desire. Similarly, exposing oneself during private gatherings typically does not violate indecency laws unless there are factors involving public exposure or intent involved as well. Thus, the correct answer emphasizes the necessary condition of intent in defining indecent exposure.