During the 1960s and 1970s,social Psychologists Who Favoured Laboratory Experiments

During the 1960s and 1970s,social psychologists who favoured laboratory experiments rebuffed critics with which of the following arguments?

A) They argued that social problems were too complex to rely on non-experimental methods of study.
B) They argued that universities would not hire social psychologists unless they did lab experiments.
C) They argued that non-experimental methods were too expensive to employ.
D) They argued that the theoretical principles being tested in the lab were widely applicable.