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
Mosquitoes decrease as height increases ? 
Select and explain. 
A. Positive correlation, B. Negative correlation, C. Bidirectional, D. Zero
B: Negative correlation
Answer: B: Negative correlation 
Explanation: Ans. is 'b' i.e., Negative correlation o This is a negative correlation, i.e. when height increases the mosquitoes decrease.