Carbon monoxide (CO), an air pollutant when inhaled readily binds with the hemoglobin in the blood stream to form a life threatening compound known as

Correct option is D

When carbon monoxide (CO) is inhaled, it has a strong affinity for hemoglobin, a protein in red blood cells responsible for carrying oxygen from the lungs to the body's tissues. Carbon monoxide binds to hemoglobin more tightly than oxygen, forming a compound known as carboxyhemoglobin.