An Important Consideration Associated with Anaemias Caused by Vitamin B₁₂

An important consideration associated with anaemias caused by vitamin B₁₂ deficiency is that:

A) high doses of vitamin B₁₂ can induce hyperkalaemia.
B) in pernicious anaemia, vitamin B₁₂ must be administered parenterally.
C) the clinical form of vitamin B₁₂ is called pyridoxine.
D) solutions of vitamin B₁₂ must be kept refrigerated.