**Core Concept**
Excessive sexual desires in females is a psychological and medical condition characterized by an intense and persistent urge to engage in sexual activity. This condition is often associated with hormonal imbalances, particularly an excess of androgens or a deficiency of estrogen.

**Why the Correct Answer is Right**
The correct answer, Hypersexuality, is a condition where individuals experience an overwhelming preoccupation with sex, leading to excessive and compulsive sexual behavior. This can be caused by various factors, including hormonal imbalances, neurological disorders, or psychiatric conditions such as bipolar disorder or schizophrenia. In females, hypersexuality may be related to an excess of androgens, such as testosterone, which can stimulate sexual desire and arousal.

**Why Each Wrong Option is Incorrect**
**Option A:** Nymphomania - This term is often used to describe excessive or uncontrollable sexual desire in females, but it is considered outdated and not a formal medical diagnosis.
**Option B:** Sex addiction - While sex addiction is a recognized condition, it is not a specific term for excessive sexual desires in females.
**Option C:** Libido - Libido refers to a person's overall sex drive, but it is not a term used to describe excessive or pathological sexual desire.

**Clinical Pearl / High-Yield Fact**
It's essential to note that excessive sexual desires can have underlying medical or psychological causes, and a comprehensive evaluation is necessary to determine the correct diagnosis and treatment plan.

**Correct Answer: D. Hypersexuality. Hypersexuality**