**Core Concept**
Mullerian and Wolffian ducts are embryological structures that give rise to different reproductive organs in females and males. In females, the Mullerian ducts develop into the fallopian tubes, uterus, cervix, and upper part of the vagina, while the Wolffian ducts regress. In males, the Wolffian ducts develop into the epididymis, vas deferens, seminal vesicles, and ejaculatory ducts, while the Mullerian ducts regress.

**Why the Correct Answer is Right**
The condition that presents with both Mullerian and Wolffian duct structures is Androgen Insensitivity Syndrome (AIS), also known as testicular feminization. In AIS, individuals have a 46,XY karyotype and testes, but they are resistant to androgens, which leads to the development of female external genitalia and Mullerian duct-derived organs. However, the Wolffian ducts also develop into epididymis and vas deferens, which are not typically seen in females. This is because the testes produce androgens, which stimulate the Wolffian ducts to develop.

**Why Each Wrong Option is Incorrect**
**Option A:** Turner syndrome, a condition characterized by a 45,X karyotype, typically presents with streak gonads and does not develop Mullerian duct structures. Therefore, it is not the correct answer.
**Option B:** Klinefelter syndrome, a condition characterized by a 47,XXY karyotype, typically presents with testes and does not develop Wolffian duct structures, as the androgen receptor is functional. Therefore, it is not the correct answer.
**Option C:** Androgen Insensitivity Syndrome (AIS) is the correct answer, as it presents with both Mullerian and Wolffian duct structures.

**Clinical Pearl / High-Yield Fact**
Androgen Insensitivity Syndrome (AIS) is a condition that should be considered in individuals with a 46,XY karyotype and female external genitalia, as they may have testes and develop Mullerian duct-derived organs.

**Correct Answer:** C. Androgen Insensitivity Syndrome (AIS)