Question

beginning symptoms of carbon monoxide poisoning include: headache dizziness nausea confusion prolonged carbon monoxide exposure can lead to unconsciousness and suffocation. running an engine in a confined area without ventilation can produce very harmful levels of carbon monoxide in a short amount of time. therefore, vehicle exhaust gases must be extracted to the outside via exhaust hose fitted over the tail pipe(s). vehicles fitted with catalytic converters still produce lethal levels of co gas, so always connect exhaust ventilation equipment when running an engine inside the shop. if you suspect someone is experiencing symptoms of carbon monoxide poisoning, move them immediately to clean outside air and call 911. what are the symptoms of co poisoning? sore throat confusion nausea dizziness headache

Explanation:

The text clearly states that the beginning symptoms of carbon - monoxide poisoning include headache, dizziness, nausea, and confusion. Sore throat is not mentioned as a symptom of CO poisoning.

Answer:

B. Confusion, C. Nausea, D. Dizziness, E. Headache