What historical event led to leaving cookies out for Santa?

Here is the question :

WHAT HISTORICAL EVENT LED TO LEAVING COOKIES OUT FOR SANTA?

Here is the option for the question :

World War I
Prohibition
Great Depression
Civil War

The Answer:

And, the answer for the the question is :

Great Depression

Explanation:

[STC0011463]. The custom of leaving out milk and cookies for Santa is very recent, dating back to the 1930s. Despite the severity of the Great Depression, many families still sought opportunities to instill in their children a sense of charity. So they started leaving Santa food as a way to express their appreciation for his gifts.