**Core Concept**
Ureteric constriction refers to the narrowing of the ureter, which is a muscular tube that carries urine from the kidneys to the bladder. These constrictions are anatomical sites where the ureter is naturally narrower, and they can be clinically significant in terms of ureteral obstruction and hydronephrosis.

**Why the Correct Answer is Right**
The ureteric constrictions occur at three main sites: the pelvic brim, the crossing of the iliac vessels, and the ureteropelvic junction (the junction between the renal pelvis and the ureter). These constrictions are due to the anatomical relationship between the ureter and surrounding structures, such as the iliac arteries and veins, and the renal pelvis.

**Why Each Wrong Option is Incorrect**
**Option A:** The ureteric constriction at the ureterovesical junction is a common site for ureteral obstruction, particularly in the context of bladder outlet obstruction or ureteral stones. This option is therefore incorrect because it is a site of ureteric constriction.
**Option B:** The ureteric constriction at the crossing of the iliac vessels is a common site for ureteral obstruction due to external compression by the iliac arteries and veins. This option is therefore incorrect because it is a site of ureteric constriction.
**Option C:** The ureteric constriction at the ureteropelvic junction is a common site for ureteral obstruction due to intrinsic narrowing of the ureter. This option is therefore incorrect because it is a site of ureteric constriction.

**Clinical Pearl / High-Yield Fact**
It is essential for clinicians to be aware of these anatomical constrictions to diagnose and manage ureteral obstruction and hydronephrosis effectively.

**Correct Answer: D**