**Core Concept**
Sonosalpingography is a diagnostic imaging technique used to visualize the fallopian tubes, particularly to assess tubal patency and identify any blockages or abnormalities. It involves the injection of a contrast agent into the uterus, which then flows through the fallopian tubes, allowing for visualization of their structure and function.

**Why the Correct Answer is Right**
Sonosalpingography is specifically indicated for evaluating tubal patency and diagnosing conditions such as hydrosalpinx, tubal blockage, or ectopic pregnancy. The procedure is typically performed under ultrasound guidance to visualize the contrast agent as it flows through the fallopian tubes. This allows for the assessment of tubal function and identification of any abnormalities that may be contributing to infertility or other reproductive issues.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because sonosalpingography is not typically used for evaluating ovarian function or assessing the size and number of ovarian follicles.
**Option B:** This option is incorrect because hysterosalpingography (HSG) is a different diagnostic imaging technique that involves the injection of a contrast agent into the uterus, but it is not the same as sonosalpingography.
**Option C:** This option is incorrect because sonosalpingography is not a primary diagnostic tool for evaluating uterine abnormalities or assessing the size and shape of the uterus.

**Clinical Pearl / High-Yield Fact**
Sonosalpingography is a valuable tool for diagnosing tubal blockages and other reproductive abnormalities, particularly in cases where hysterosalpingography or other imaging techniques are inconclusive. It is essential to remember that sonosalpingography is a specific technique that requires careful interpretation of ultrasound images to accurately diagnose tubal patency and other conditions.

**Correct Answer:** C.