Mary has volunteered at the local crisis center. While she is performing as a volunteer, she is given permission to gather data on the number of women who report being abused, and the number of women who later participate in counseling. Mary is using as a method of gathering data.

d. participant observation

Explanation:

Based on the scenario being described it can be said that in this situation Mary is using participant observation as a method of gathering data. This is a research method where the researcher (in this case Mary) observes the participants of the study but also engages with them in order to better gather more detailed information. Such as Mary has done by also volunteering in order to gather data on the other women.

can you explain it better

answer; code of federal regulations;