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: Dental
Theme of WHO in 2020 is: 
Select and explain. 
A. Support Nurses and Midwives, B. COVID-19 Lets fight together, C. Universal Health Coverage: Everyone, Everywhere, D. None of the above
A: Support Nurses and Midwives
Answer: A: Support Nurses and Midwives 
Explanation: THEMES OF WHO
2020 – Support Nurses and Midwives
2019 – Universal Health Coverage: Everyone, Everywhere" 
2018 – Universal health coverage
2017 – Depression
2016 – Diabetes
2015 – Food safety