Final answer:
The areas that represent consumer surplus at p1* are a. a, d. d, and e. e.
Step-by-step explanation:
To find the area(s) representing the consumer surplus at p1*, we need to identify the triangle(s) labeled by F in the figure. The area labeled by F represents the consumer surplus, where the equilibrium price is less than what many consumers are willing to pay. Therefore, the correct choices are a. a, d. d, and e. e.