This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
A patient of total parenteral nutrition develops delayed wound healing, loss of taste, deficient immunity and diarrhea. Most probably it could be due to deficiency of: September 2008 
Select and explain. 
A. Selenium, B. Copper, C. Zinc, D. Iron
C: Zinc
Answer: C: Zinc 
Explanation: Ans. C: Zinc Symptoms of Zinc Deficiency Poor Immune system Weight loss Intercurrent infections Hypogonadism in males Lack of sexual development in females Growth retardation Dwarfism Delayed pubey in adolescents Rough skin Poor appetite Mental lethargy Delayed wound healing Sho stature Diarrhea Congenital abnormalities causing zinc deficiency may lead to a disease called acrodermatitis enteropathica.