Answer:
C. They can both function as nouns.
Explanation:
I calculated it logically
Answer is BLIND “ LOVE IS BLIND”
Fuel conservation is the platform to conserve the use of fossil fuels. It is also a movement that informs people to conserve fuels or use less fuel. You can conserve fuel by not bringing a car in the office because it can help in conserving fossil fuels and this is the simpliest way of doing it.