Final answer:
The study's findings may not generalize to real-world social interactions.
Step-by-step explanation:
The correct answer is b) The study's findings may not generalize to real-world social interactions.
Low external validity means that the findings of the study may not apply to a wide range of social situations. In Dr. Shah's study, the participants are observed in a controlled lab setting, which may not accurately represent real-world social interactions. The behavior of participants in the lab may be influenced by the artificial environment and may not reflect how they would behave in natural social situations. Therefore, the study's findings may not generalize to real-world social interactions.