Out of the given, 'propaganda campaigns encouraged people to grow their own food' best illustrates the concept of total war in World War 1.
Answer: Option A
Explanation:
The concept of total war that emerged before and during the course of World War I referred to war on all the fronts including that of food supplies.
The campaigns that were knowingly and unknowingly carried out before the war emphasised on having self-sufficient supplies of goods and not relying upon enemy countries for the supplies of any sort of food anymore.
