Im guess it would be 20,000 but im not positive
Answer: Secondary data
Explanation: In simple words, the data that is collected by someone and is used by someone else is called secondary data. Government reports and surveys by other such organisation are two of the many examples of secondary data.
In the given case, Sandra collected information for her future business from the published research reports. She did not collected data from a census conducted by herself.
Hence, from the above we can conclude that the correct option is B.
