**Core Concept:** Asthma-like symptoms are manifestations of respiratory distress caused by various factors, including toxic substances. Understanding these symptoms can aid in prompt diagnosis and treatment of poisoning cases.

**Why the Correct Answer is Right:**
Toxic substances can cause respiratory distress by affecting lung function, airway smooth muscle contraction, and/or inducing inflammation and bronchoconstriction. In the context of the question, we are considering the symptoms that mimic asthma, which are typically characterized by wheezing, shortness of breath, and chest tightness. The correct answer, option D, refers to "carbon monoxide poisoning."

Carbon monoxide (CO) is a toxic gas that binds to hemoglobin and impairing oxygen transport, leading to hypoxia and compensatory vasoconstriction, including in the lungs. As a result, it can cause asthma-like symptoms due to bronchoconstriction and airway hyperresponsiveness. This mechanism is distinct from the other options and explains why option D is the correct answer.

**Why Each Wrong Option is Incorrect:**
A. Salbutamol poisoning (Option A) typically results in hypotension, bradycardia, and myocardial depression rather than asthma-like symptoms.
B. Anticholinergic poisoning (Option B) often causes dry mouth, blurred vision, urinary retention, and constipation rather than asthma-like symptoms.
C. Calcium channel blocker poisoning (Option C) may lead to hypotension, bradycardia, dizziness, and headache, but not asthma-like symptoms.

**Clinical Pearl:**
Carbon monoxide poisoning can present with asthma-like symptoms, aiding in the diagnosis of this potentially life-threatening condition. Prompt recognition and treatment are crucial to minimize morbidity and mortality associated with CO poisoning. If an individual exhibits asthma-like symptoms following exposure to carbon monoxide, it is essential to suspect CO poisoning and initiate appropriate management, including oxygen therapy and carbon monoxide detectors in the home.

**Correct Answer:** D (carbon monoxide)