This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
The principal vector of dengue virus- 
Select and explain. 
A. Anopheles culicifacies, B. Aedes aegypti, C. Anopheles stephensi, D. Culex molestus
B: Aedes aegypti
Answer: B: Aedes aegypti 
Explanation: The principal vector of dengue is the mosquito Aedes aegypti, which breeds in standing water; collections of water in containers, water based air coolers & tyre drumps are a god environment for the vector in large cities. Reference: Harrison20th edition pg 879