The disadvantage of conducting a laboratory experiment is that it does not generally reflect real-life circumstances.
Laboratory experiments are a method of research by which researchers produce manageable environments to test proposals.
Although researchers do experiments in different settings, a laboratory provides the best control of manipulation conditions associated and the environment.
Laboratory experiments furnish cost-effective means of specifying processes and of analyzing the bounds of validity of the theory, especially when nonlinearity is important and estimates are expected to make progress in creating theoretical analysis.
These types of experiments do not affect the real-life circumstances because the artificial environment is so far moved away from real-life that the issues tell us very tiny about how respondents would really act in real life.
Therefore, Option B is correct.
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