Answer:
A
Explanation:
Ethnic groups are not defined by political border
Answer:
Vitamin B12 is the correct answer
Explanation:
Vitamin B12 low levels and deficiency in the human body can cause memory loss that occurs because of people suffering from pernicious anemia.
Deficiency of vitamins B12 can increase the risk of Parkinson's disease and Alzheimer's disease.
Vitamin B12 is required to keep the nerve cell and blood cells healthy and also to keep the functioning of the brain healthy.
Vitamins B12 is required to improve the people's memory and good sources of Vitamin B12 are animal liver, sardines, beef, Fortified cereal, fish, milk products and eggs.
