Answer:
Case-control study .
Explanation:
Case control study may be defined as the observational study in which the studied group shows the different outcome and compared on the basis of attribute. This study can be used to identify the different factors as well.
The study shows the comparison with the cancer woman and the other aged woman. Then they are interviewed further. This study is based on the observation and are mainly compared on their behavior. The study has been started with the people with outcome and also look at the backward to see the time exposure.
Thus, the answer is case-control study.