Representatives from Kraft spent several months with consumers in their kitchens, attempting to understand what they wanted in ready to serve meals prior to the launch of Kraft Deli Creations. The observational approach Kraft used is called research.
A) secondary
B) neuromarketing
C) experiential
D) ethnographic
E) questionnaire

d. ethnographic research

Explanation:

Ethnographic research -

It is a type of research method , where the people tries to interact with the people in real life , in order to get the best and most pure information regarding the research topic , is referred to as ethnographic research .

The method is very effective and efficient to attain knowledge for the research topic .

Hence , from the given scenario of the question ,

The correct option is  d. ethnographic research .

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.