What is caused by carbon monoxide poisoning? 

A)  sped up reflexes 
B)  headaches and dizziness 
C)  too much oxygen in the blood 
D)  sharpened thinking and perceptions

Carbon Monoxide Poisoning

A potentially fatal condition caused by inhaling carbon monoxide gas, which prevents the blood from carrying oxygen to cells, tissues, and organs.

Headaches and Dizziness

Common medical symptoms that can result from a variety of causes, ranging from mild conditions such as dehydration to more serious health issues.

Blood

A vital fluid in humans and other animals that transports oxygen and nutrients to the body's cells and carries away waste products.