Infanticide is the correct answer.

Explanation:
Infanticide refers to the act of intentionally causing the death of a newborn child by its parents. It is a grave crime and a form of homicide. In many jurisdictions, infanticide is considered a separate offense from other forms of homicide due to its unique circumstances and motivations.

The act of infanticide is often driven by various factors such as cultural beliefs, poverty, mental health issues, or the inability to care for the child. It may be carried out for a variety of reasons, including the desire to conceal an unwanted pregnancy, economic strain, or even a perceived inability to provide adequate care for the child.

Infanticide versus other related terms:

- Malfeasance: Malfeasance refers to the commission of an unlawful or wrongful act, typically by a public official or someone in a position of authority. While infanticide can be considered a form of wrongful act, it is more specific to intentionally causing the death of a newborn child by its parents.

- Abortion: Abortion refers to the termination of a pregnancy before the fetus is capable of surviving outside the womb. It is typically performed during the early stages of pregnancy, before the fetus is considered viable. Infanticide, on the other hand, involves the killing of a child after birth.

- Foeticide: Foeticide refers to the intentional killing of a fetus. It usually occurs before the fetus reaches full term, either through medical procedures or other means. Infanticide, as mentioned earlier, occurs after the birth of the child.

Conclusion:
Infanticide is a distinct and tragic act that involves the intentional killing of a newborn child by its parents. It is considered a serious crime in most legal systems and is punishable by law. The motivations behind infanticide can vary, but it is important to recognize the gravity of the offense and the need for preventive measures and support systems to address the underlying causes.