This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NCDs: CHD, HTN, DM, RF, Cancers, Obesity, Blindness, Subject name: Social & Preventive Medicine
Arrange the following causes of NCD deaths as per decreasing order of frequency? A. Cancers B. Cardiovascular diseases C. Diabetes D. Respiratory diseases 
Select and explain. 
A. A>D>C>B, B. D>A>B>C, C. B>A>D>C, D. C>B>D>A
C: B>A>D>C
Answer: C: B>A>D>C 
Explanation: The four main NCDs are cardiovascular diseases, cancers, diabetes and chronic lung diseases. The leading causes of NCD deaths in 2016 were Cardiovascular diseases ( 44% of all NCD deaths) Cancers (22% of all NCD deaths) Respiratory diseases, including asthma and chronic obstructive pulmonary disease (9% of all NCD deaths). Diabetes caused another 1.6 million deaths.