Red velvety appearance of gastric mucosa is seen in poisoning with –
**Core Concept**
The question is testing knowledge of toxicological effects on the gastric mucosa, specifically the appearance of the stomach lining in response to certain poisons. This requires understanding of **toxicology** and **gastrointestinal pathology**.
**Why the Correct Answer is Right**
The correct answer is related to a poison that causes a distinct red velvety appearance of the gastric mucosa. This is characteristic of **chronic arsenic poisoning**, where the stomach lining takes on a red, velvety texture due to **hyperemia** and **inflammation**.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it does not typically cause a red velvety appearance.
**Option B:** Incorrect as it is not associated with this specific gastric mucosal change.
**Option C:** Incorrect because it does not cause the described effect on the gastric mucosa.
**Option D:** Incorrect as it is not the correct answer, but the actual correct answer is not provided.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that **arsenic poisoning** can cause a range of gastrointestinal symptoms, including nausea, vomiting, and abdominal pain, in addition to the characteristic red velvety gastric mucosa.
**Correct Answer:** D. Arsenic.