This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Medicine
Features of Manganese deficiency:- 
Select and explain. 
A. Anemia, B. Alopecia, C. Ataxia, D. Gonadal atrophy
D: Gonadal atrophy
Answer: D: Gonadal atrophy 
Explanation: *Deficiency causes Impaired reproduction. *As manganese is required for activation of enzymes required for gonadal function. Signs of manganese deficiency include impaired growth, impaired reproductive function, skeletal abnormalities, impaired glucose tolerance, and altered carbohydrate and lipid metabolism. .Overall, manganese deficiency is not common, and there is more concern for toxicity related to manganese overexposure Ref Davidson edition23rd pg 708 ( ref...Harrison 20th pg 443)