Answer:
A
Explanation:
Because participating in foodless days conserved food.
Buying war bonds both showed patriotism and conserved.
Also Victory gardens, also known as war gardens I do believe gave more food.
Which leaves A, If you plant fewer crops, you will normally have less food to conserve which doesn't exactly help.
According to the Declaration of Independence, the government gets its power to govern from the people that it governs. As the Declaration says, Governments are instituted among Men, deriving their just powers from the consent of the governed.