**Core Concept**
Ambivalence refers to a state of having mixed or conflicting feelings, attitudes, or opinions towards a particular person, situation, or idea. This concept is crucial in psychology and psychiatry to understand the complexities of human emotions and behavior.

**Why the Correct Answer is Right**
The term "ambivalence" was indeed coined by Eugen Bleuler, a Swiss psychiatrist, in 1911. Bleuler used this term to describe the conflicting emotions and attitudes experienced by patients with schizophrenia. Ambivalence is characterized by the coexistence of positive and negative emotions towards the same object or person, resulting in indecision and confusion.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because ambivalence is not associated with Sigmund Freud, who introduced the concept of psychoanalysis. While Freud did discuss conflicting emotions, he did not specifically coin the term "ambivalence".
* **Option B:** This option is incorrect because Carl Jung, a Swiss psychiatrist and psychoanalyst, built upon Freud's work but did not introduce the concept of ambivalence.
* **Option C:** This option is incorrect because Karl Jaspers, a German psychiatrist and philosopher, made significant contributions to the field of psychiatry, but he did not coin the term "ambivalence".

**Clinical Pearl / High-Yield Fact**
Bleuler's concept of ambivalence highlights the importance of understanding the complex emotional landscape of psychiatric patients. This awareness can inform treatment approaches that address the underlying emotional conflicts and promote more effective management of symptoms.

**Correct Answer: C. Eugen Bleuler**