Question

is an increased rate of red blood cell destruction.
a sickle-cell disease
b hemolytic anemia
c pernicious anemia
d aplastic anemia

Explanation:

• Sickle - cell disease is a genetic disorder that causes red blood cells to become sickle - shaped, but it is not directly defined as an increased rate of red blood cell destruction.
• Hemolytic anemia is specifically characterized by an increased rate of red blood cell destruction (hemolysis).
• Pernicious anemia is due to a deficiency of vitamin B12, which affects red blood cell production, not destruction.
• Aplastic anemia is caused by the bone marrow's inability to produce sufficient new blood cells, not by increased red blood cell destruction.

Answer:

B. Hemolytic anemia