**Core Concept**
Intestinal obstruction is a clinical condition characterized by the mechanical or functional impairment of the normal flow of intestinal contents. Radiological features play a crucial role in diagnosing and differentiating various types of intestinal obstructions. The underlying principle being tested here involves the understanding of radiological signs and symptoms associated with intestinal obstruction.

**Why the Correct Answer is Right**
The correct answer is related to the radiological features of intestinal obstruction. However, without the options provided, it's challenging to explain which one is incorrect. Typically, radiological features of intestinal obstruction include dilated loops of bowel, air-fluid levels, and a transition zone between the obstructed and non-obstructed segments. These features are often visualized on plain abdominal radiographs or CT scans.

**Why Each Wrong Option is Incorrect**
**Option A:** This option might be incorrect if it suggests that intestinal obstruction is always associated with a specific type of radiological feature, such as a "double bubble sign" (which is more specific to duodenal obstruction). However, intestinal obstruction can manifest with various radiological features depending on the level and type of obstruction.

**Option B:** This option might be incorrect if it implies that intestinal obstruction is always accompanied by significant bowel dilatation. While bowel dilatation is a common feature, some types of obstruction (e.g., high-grade ileus) may not exhibit significant dilatation.

**Option C:** This option might be incorrect if it states that all intestinal obstructions are associated with a specific radiological sign, such as "obtuse angles" between bowel loops. However, the presence or absence of obtuse angles may not be a reliable indicator of intestinal obstruction.

**Option D:** This option might be incorrect if it suggests that intestinal obstruction is always visible on radiographs. Some cases of intestinal obstruction (e.g., low-grade obstructions or those with a small amount of bowel content) may not be evident on plain radiographs.

**Clinical Pearl / High-Yield Fact**
In cases of suspected intestinal obstruction, a high index of suspicion and a thorough understanding of radiological features are essential for accurate diagnosis. Pay attention to the transition zone between the obstructed and non-obstructed segments, as this can provide valuable clues about the level and type of obstruction.

**Correct Answer:**
(Note: The correct answer cannot be determined without the options provided. Please provide the correct options for a complete explanation.)