Which of the following types of research involves recording behavior or the residual evidence of behavior?

A) Survey research.
B) Observational research.
C) Ethnographic research.
D) Sentiment research.
E) Netnography research.

Observational Research

Observational Research is a method of data collection where researchers observe and document behaviors, actions, or processes as they naturally occur, without interference or manipulation.

Residual Evidence

Information or data left behind that can be used to infer or reconstruct events, typically in the context of forensic analysis or historical research.