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
Which of the following trace element has vitamin E like action: 
Select and explain. 
A. Selenium, B. Cheomycin, C. Copper, D. Zinc
A: Selenium
Answer: A: Selenium 
Explanation: Selenium