The statement that best summarizes the role of farmers, artisans, and merchants in feudal Japan is:
All contributed to feudal Japanese society, but they were valued less because they did not have military expertise.
This reflects the societal structure of feudal Japan, where the samurai class (warriors) held the highest status due to their military roles, while farmers, artisans, and merchants played essential roles in the economy and daily life but were ranked lower in the social hierarchy.