Propose our own interests?

In one test says, “The director believes that the best way to______our own interests is to provide the best possible service to our customers.”
And it gives 4 options:
A. Propose
B. Supply
C. Reflect
D. Serve
What do you think about the suggested answer - D and others? How are they different from one another?

I think that c. “Reflect” could be fine. Edward22

How would you interprete it?

D is the only option that really works within the context.

the best way to meet our own interests is to provide good service (because then the business will grow and be successul, and we will be promoted and be successful too).

Do you mean “interests” here is commissions? Or does it mean somthing else?

interests = aims

Thank you!