### **Core Concept**
The ovarian artery, vein, and nerves are crucial for the blood supply, drainage, and innervation of the ovary. These structures play a vital role in maintaining ovarian function and are essential for understanding the anatomy of the female reproductive system.

### **Why the Correct Answer is Right**
The main portion of the ovarian artery, vein, and nerves is carried to and from the ovary by way of the suspensory ligament, also known as the infundibulopelvic ligament. This ligament connects the ovary to the pelvic wall and contains the ovarian vessels and nerves that supply the ovary. The suspensory ligament provides a vital connection between the ovary and the rest of the pelvic organs, facilitating the exchange of blood, nerves, and other essential structures. The ovarian artery, a branch of the abdominal aorta, supplies oxygenated blood to the ovary, while the ovarian vein drains deoxygenated blood from the ovary into the inferior vena cava. The nerves, primarily sympathetic and parasympathetic fibers, regulate ovarian function and are also carried by the suspensory ligament.

### **Why Each Wrong Option is Incorrect**
**Option B:** The ovarian ligament, also known as the ligament of the ovary, is a short ligament that connects the ovary to the uterus, but it does not carry the main portion of the ovarian artery, vein, and nerves.

**Option C:** The broad ligament is a fold of peritoneum that attaches the uterus, fallopian tubes, and ovaries to the pelvic wall, but it is not primarily involved in carrying the ovarian vessels and nerves.

**Option D:** The mesovarium is a fold of peritoneum that attaches the ovary to the broad ligament, but it is not the main structure responsible for carrying the ovarian artery, vein, and nerves.

### **Clinical Pearl / High-Yield Fact**
It's essential to remember that the suspensory ligament is a critical structure in gynecology, and damage or injury to this ligament can lead to ovarian torsion, a medical emergency that requires immediate attention.

### **Correct Answer Line**
✓ Correct Answer: A. Suspensory ligament