The human body gets rid of unwanted substances through excretion processes. There are organs involved in these processes. The core function of the liver is to filter blood coming from the digestive system before its distribution to other body parts.
The liver, for instance, breaks down chemicals on alcohol residues in the body into ethanoic acid. That way, it helps to get rid of alcohol from the human bloodstream. It is the work of the liver organ to remove toxins from the human body and therefore, that is why it will eliminate the ethanol in alcohol from the bloodstream. Therefore, the answer is b – liver.