The goal of France and Great Britain in WW1 was to defeat the central powers and restore peace and safety back to Europe. They wanted for the war to end quickly as possible as with each passing month of this war progressing, the money toll that it had on both of their economies was extremely big.
3 is the correct answer. Let me know if you want me to explain why that is the answer.
Here is a diagram I found online if it helps!
Answer:
(a) energy source, either sunlight or chemicals
Explanation:
