Which among the following is a valid criticism of experimental methods in the social sciences?

A valid criticism of experiments in social science is the artificiality of laboratory conditions.

Controlled lab settings differ from real social life, weakening external validity.

It is untrue that experiments are impossible in social situations; field experiments exist.

Good social-science experiments are in fact available, so unavailability is not the flaw.

Social problems can be studied experimentally, so that sweeping claim is false.

The trade-off is high internal validity but limited generalisability.