Researcher A spends 6 months observing and taking notes on public transportation usage and obstacles among patrons relying on wheelchairs. Researcher B interviews multiple individuals who rely on wheelchairs to identify common public transportation experiences among the individuals. Researcher A is using a(n) Question Blank 1 of 2 choose your answer... approach to data collection whereas Researcher B is using a(n) Question Blank 2 of 2 choose your answer... approach to data collection