Final answer:
Andrea has done her own research for a project. It is Primary data. Option a is correct.
Step-by-step explanation:
Andrea has conducted her own research for a project, indicating that she has collected the data herself. This type of data collection is referred to as primary data, which is firsthand information obtained directly from original sources by the researcher.
In contrast, secondary data would involve analyzing data that has already been collected by someone else, such as academic papers or historical records. Therefore, the correct answer is A. Primary data.