Descriptive research is a research methodology you can use to describe the characteristics of the variables that you are studying, such as events, organizations, individuals, etc. This type of research answers explicitly the “what” question instead of the “how,” “why,” and “when” questions. Through this type of research, you can obtain information about the current situation of a phenomenon but not the reason for its state.
Answer A. Innate.
We do not know if it is a trait that all humans are born with (which would be innate), or if it's something that we develop as we grow older.
The other words wouldn't make sense in the place of innate.