Ow gender roles have changed over time?

you are required to critically discuss your view of what would be the most appropriate qualitative research method (individual interviews, focus groups, participant observation/ethnography, or visual methods) for studying the following research topics:

How gender roles have changed over time?

You should discuss the strengths of your preferred research method and explain why you think the other types of qualitative research method listed above would be less effective or not appropriate. You should also identify any potential weakness of your preferred research method and discuss how you would try to overcome these weaknesses.