The main difference between primary and secondary research is that
primary research is done informals while secondary research is done with paper surveys
primary research occurs earlier than secondary research in the marketing research process
primary research is original research and secondary research was collected by someone else
primary research is information found in the library while secondary research can be found online

Respuesta :

I think it is c because primary research is original and from the certain time while secondary research is collected from others by research and stuff

Answer:

c. i hope this helps :)

Explanation: