Answer:
Case control
Explanation:
Case-control study: The case-control study is also referred to as a case-referent study and is defined as one of the types of observational study in which two distinct groups that differ in the outcome are being compared and identified based on a few causal attributes. On the other hand, it determines whether an exposure is somewhat connected with a particular outcome.
In the question above, the given statement signifies the case-control study.