Answer:
The correct answer would be, Observing.
Step-by-step explanation:
Descriptive methods are research strategies for Observing and describing behavior.
A Descriptive Research is a method of research which focuses on describing the characteristics of the population which is being studied, rather than focusing on why the certain phenomenon occur. Descriptive method mainly describes the nature of the demographic segment and do not focus on why it occurred.
So in this method, the two strategies that are used are Observation and Description. The population is being observed and then described through the research.