The correct answer is number 1) Americans planted home gardens to ration food for the troops.
One of the initiatives that were taken by Americans to benefit the war effort was that Americans planted home gardens to ration food for the troops.
These gardens were called "Victory Gardens." It was a good way in which American citizens contributed to the war effort. Historians consider that almost 20 million gardens were planted in those years of World War II., and represented great support in the production of food for internal consumption because the government had to send supplies to the ar front in Europe.