Huhhh translate then I could help
Nonmetal
Nonmetal (brittle, doesn't react with acid, and doesn't conduct electricity are factors of a nonmetal).
The answer to your question is A. "Others weren't so lucky. In the rush and panic, a number of people either lost their footing or were accidentally pushed from the sidewalk and into the busy street."
Answer:
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.
