Which of the following is a principle meaning "buyer beware" in latin

Caveat emptor is a neo-Latin phrase meaning "let the buyer beware." It is a principle of contract law in many jurisdictions that places the onus on the buyer to perform due diligence before making a purchase. The term is commonly used in real property transactions but applies to other goods, as well as some services.

Explanation:

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.

they work in some type of way