Question

how did the development of new technology after world war i affect farmers?
it helped them produce better crops.
it helped them produce more crops.
it forced them to cut prices.
it forced them to raise prices.

Explanation:

After World War I, new technology in agriculture (like tractors, better seeds, etc.) increased productivity. When supply (of crops) increases in a market (assuming demand doesn't increase proportionally), farmers have to cut prices to sell their produce. Producing better crops is not the main impact here compared to the market - related price - cutting due to oversupply. Producing more crops (without considering market forces) is not the full picture as the price change is a key consequence. Raising prices would not happen when supply is high (assuming no significant demand increase).

Answer:

It forced them to cut prices.