**Core Concept**
The prostate gland is a walnut-sized gland in males, surrounding the urethra. It has several lobes, including the middle lobe, which is of clinical significance due to its proximity to the urethra.

**Why the Correct Answer is Right**
The middle lobe of the prostate is situated between the **urethra** and the **ejaculatory ducts**, more specifically, it is located on either side of the urethra, in the posterior part of the prostate. This lobe can enlarge and obstruct urine flow, particularly in conditions like benign prostatic hyperplasia.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, so we cannot assess its accuracy.
**Option B:** Without the specific details of this option, it's challenging to determine why it's incorrect, but generally, the middle lobe's position is more closely associated with the urethra.
**Option C:** Similarly, without specifics, it's hard to comment, but the middle lobe is not typically described in relation to structures outside the prostate itself in this context.
**Option D:** Again, lacking details, but the correct relationship involves the urethra and structures within the prostate.

**Clinical Pearl / High-Yield Fact**
Remember, the middle lobe of the prostate can significantly impact urinary symptoms due to its central location around the urethra. Enlargement of this lobe can lead to obstructive symptoms.

**Correct Answer:** Correct Answer: C. Between the urethra and the ejaculatory ducts.