Final answer:
The correct answer is 'c. diverse groups are more creative than homogeneous groups,' as supported by research indicating that diverse teams, such as gender-balanced teams, tend to perform better and exhibit greater creativity due to a wider range of skills and perspectives.
Step-by-step explanation:
Based on the context of the research provided, the answer to the student's question is: 'c. diverse groups are more creative than homogeneous groups.' This is supported by the findings of Hoogendoorn, Oosterbeek, & van Praag (2013) which specified that gender-balanced teams performed better compared to teams comprised predominantly of one gender, exhibiting enhanced sales and profits. The research also implies that diverse groups have a greater skill set and potential for improved communication and interpersonal relationships, which can bolster creativity and team performance. Despite the possible challenges associated with diversity, such as communication and interpersonal-relationship problems, the various perspectives in a diverse group often contribute to a broader range of ideas, thus enhancing the group's creative output.