Why would a body fail to make a protein it needs

People who are found to have low protein in their body (hypoproteinaemia) are either not taking enough in through their diet, or are unable to absorb it. Malabsorption of food is often found in patients with gut problems, and nutritional deficiencies are often seen in chronic bowel disorders

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.