<prompt> What type of anemia is seen in B12 deficiency:NormocyticMacrocyticMicrocyticDimorphic  <response>: Macrocytic anemia - In it RBCs are larger in size than their normal size Causes:- -Vitamin B12 deficiency -Folic acid deficiency -Alcoholism WITH REGARD TO OTHER OPTIONS: Normocytic anemia option a:Causes of normocytic anemia include acute blood loss, apoplastic anemia bone marrow failure, haemolytic anemia abnormal breakdown of RBCs. Microcytic anemiaoption c:Majority of microcytic anemia are result of insufficiency in haemoglobin synthesis or failure in haemoglobin synthesis or both. For e.g. iron deficiency. Dimorphic anemia option d: In Dimorphic Anemia, two distinct forms of red cell populations exist. It can occur when iron deficiency anemia responds to iron therapy, after the transfusion of normal blood to a patient with Hypochromic Anemia and in Sideroblastic Anemia. 