Which of the following actions is classified under felony offenses concerning minors?

Among the actions listed, all are classified as felony offenses concerning minors.

Possessing child pornography is strictly prohibited under both state and federal laws, as it involves the exploitation and abuse of minors. This is considered a serious crime due to the significant harm it inflicts on children, and it carries severe penalties.

Unlawful sexual intercourse with a minor, particularly in scenarios where the age difference exceeds three years, is treated with utmost seriousness given the potential for abuse of power and consent issues. Laws are designed to protect minors from sexual exploitation, and such acts are categorized as felonies because they violate those protections.

Annoying a child, while it might not seem as severe at first glance, can also lead to felony charges particularly in cases where it involves harassment or endangerment. Such actions are taken seriously under the law, especially when they threaten a child's safety or well-being.

Therefore, since each of these actions can be considered a felony offense concerning minors, indicating all of the options is accurate.