The project funding decisions made by two interdependent research companies, Creative and Genezyz, resulted in a profit of $4 million for Creative and a profit of $5 million for Genezyz. Which of the following is required for this combination of project choices to be a Nash equilibrium?
A. Genezyz charges a lower price to its customers than Creative does.
B. Neither firm has a dominant strategy.
C. Neither firm could earn higher profits by unilaterally changing its project choice.
D. Creative could earn a higher profit if it chose a different project when Genezyz chose its initial project.
E. The combined profits of the two firms are maximized at the current combination of project choices.