**Core Concept**
The broad ligament is a fold of peritoneum that attaches the uterus, uterine tubes, and ovaries to the pelvic wall. It is composed of several parts, each with distinct functions and attachments. Understanding the anatomy of the broad ligament is crucial for identifying the part that provides attachment and support to the uterine tube.

**Why the Correct Answer is Right**
The mesosalpinx is the part of the broad ligament that gives attachment and support to the uterine tube. It is a fold of peritoneum that envelops the uterine tube and attaches it to the pelvic wall. The mesosalpinx plays a crucial role in maintaining the position and function of the uterine tube. It is also involved in the transmission of nerve fibers that innervate the uterine tube.

**Why Each Wrong Option is Incorrect**
**Option A:** The mesometrium is the part of the broad ligament that attaches the uterus to the pelvic wall, not the uterine tube. It is a fold of peritoneum that envelops the uterine artery and vein.

**Option B:** The mesovarium is the part of the broad ligament that attaches the ovary to the pelvic wall, not the uterine tube. It is a fold of peritoneum that envelops the ovarian vessels and nerves.

**Option D:** The round ligament of the uterus is a fibromuscular cord that extends from the uterine corpus to the labia majora, but it does not provide attachment or support to the uterine tube.

**Clinical Pearl / High-Yield Fact**
The broad ligament is a key anatomical structure that provides support and attachment to the female reproductive organs. Identifying the different parts of the broad ligament, including the mesosalpinx, mesometrium, and mesovarium, is essential for understanding the anatomy and physiology of the female reproductive system.

**✓ Correct Answer: C. Mesosalpinx**