Theory of Pshycosexual development was given by
**Core Concept**
The theory of psychosexual development, also known as the psychosexual stages of development, is a concept in psychology that describes the sequence of stages a person goes through from birth to adulthood, as proposed by Sigmund Freud. This theory suggests that children pass through different stages of development, each characterized by a focus on a specific erogenous zone and a particular mode of gratification.
**Why the Correct Answer is Right**
Sigmund Freud proposed the psychosexual stages of development, which include the oral, anal, phallic, latency, and genital stages. Each stage is marked by a focus on a specific erogenous zone and a particular mode of gratification. For example, in the oral stage, the infant is primarily focused on the mouth and receives pleasure from sucking and feeding. The phallic stage, which occurs between the ages of 3 and 6, is characterized by a focus on the genitals and a sense of pleasure derived from touching or exploring one's own genitals.
**Why Each Wrong Option is Incorrect**
* **Option A:** is incorrect because it does not accurately represent the developer of the psychosexual stages of development.
* **Option B:** is incorrect because it is a stage of development within the psychosexual stages, not the overall theory.
* **Option D:** is incorrect because it is a different psychological theory altogether.
**Clinical Pearl / High-Yield Fact**
The psychosexual stages of development are a critical concept in psychology, as they provide insight into the development of personality and behavior. Understanding these stages can help clinicians identify potential areas of psychological distress or developmental delays in children and adolescents.
**Correct Answer: C. Sigmund Freud**