A 40-Year-Old Female Patient Was Diagnosed with Iron Deficiency Anemia

A 40-year-old female patient was diagnosed with iron deficiency anemia.Which of the following is the most probable cause for this type of anemia?

A) Lack of vitamin B12 resulting in misuse of iron in the body
B) A genetic disorder resulting in the inability to absorb urea from the gut
C) Traumatic hemorrhage
D) An excessive breakdown of red blood cells
E) Heavy menstrual bleeding