Answer:
c. gasoline station to a motorist in Los Angeles.
Step-by-step explanation:
A final good is a good that is used by the consumer to satisfy current wants and it is not used to produce another good.
Gasoline would be used by the fuel station in San Francisco to generate cash by selling it. So it is not a final good.
The bus company uses the fuel as an input needed to generate cash. It is not a final good to the bus company.
I hope my answer helps you