The correct answer is (a) Liver.
The liver is the largest organ in the human body and is responsible for many important functions, including detoxification of alcohol. When alcohol is consumed, it is broken down by the liver into acetaldehyde, which is a toxic substance. The liver then converts acetaldehyde into acetate, which is a non-toxic substance that can be excreted in the urine.
The lungs, heart, and kidneys are also important organs, but they are not responsible for detoxification of alcohol. The lungs are responsible for exchanging oxygen and carbon dioxide in the blood. The heart is responsible for pumping blood throughout the body. The kidneys are responsible for filtering waste products from the blood and excreting them in the urine.
Alcohol is a depressant that can impair judgment, coordination, and reaction time. It can also cause addiction and liver damage. If you are concerned about your alcohol consumption, please talk to your doctor.