Answer:
constraints; data
Step-by-step explanation:
In the second step of marketing research, the research plan is developed. This includes making clear the limitations that will be met during the research activities and identifying the information/data needed for marketing decision making. The research plan is aimed at answering or atleast leading to the solution of the research problem identified in the first step. Instrument used to collect information, the type of research to be carried out are all determined at this stage.