Answer:
Pernicious anemia
Explanation:
Pernicious anaemia is a type of anaemia which leads to the reduction in the number of the erythrocyte of red blood cells which carries the oxygen from one part of the body to another.
The person with pernicious anaemia shows symptoms of reduction in red blood cell due to the inability of the body to absorb vitamin B12 from the human diet which is required during the process of hematopoiesis or the formation of red blood cell as co-factor. Therefore the decreased amount of vitamin B12 leads to a decrease in the red blood cells.
Thus, Pernicious anaemia is the correct answer.
