Danika Recently Presented Her Dissertation Study at a National Conference

Danika recently presented her dissertation study at a national conference. The focus of her research was standardized testing. If she conducted ethnographic research which were likely primary data sources for her study?

A) A district's scores on the tests administered
B) A matrix showing correspondence between curriculum and the test
C) Observations of curriculum coordinators
D) Interviews parents whose students did not fair well on the test