Multiple choice The antipernicious anemia factor belongs to vitamins ____________. B12 B6 B2 C None of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation This option is correct because vitamins B12 involves the formation of red blood cells. Deficiency of it causes pernicious anemia, accompanied by degradation of spinal cord. Thus vitamins B12 is known as antipernicious anemia factor.