**Core Concept**
Penis envy is a psychological concept that refers to a phenomenon where individuals, predominantly females, exhibit feelings of inadequacy or resentment towards their own anatomy, often perceiving their genitalia as inferior to those of males. This concept is rooted in psychoanalytic theory, specifically the work of Sigmund Freud.

**Why the Correct Answer is Right**
In psychoanalytic theory, penis envy is thought to arise from the Oedipus complex, where children develop a desire for the opposite-sex parent and feelings of rivalry towards the same-sex parent. This complex is believed to be a universal aspect of human development, leading to the formation of gender identity and the resolution of the Oedipus complex is thought to be crucial in the development of a stable sense of self.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not directly related to the concept of penis envy. While it may be a plausible distractor, it does not accurately describe the phenomenon.
* **Option B:** This option is incorrect because it refers to a different psychological concept altogether. While it may be related to psychoanalytic theory, it is not directly connected to penis envy.
* **Option C:** This option is also incorrect because it describes a different psychological phenomenon. While it may be related to the Oedipus complex, it is not the correct answer.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that penis envy is a psychological concept, not a clinical diagnosis. It's a phenomenon that can be observed in individuals, particularly females, but it's not a formal psychiatric diagnosis.

**Correct Answer:** D