Why did the automobile have a major impact on the united states in the twenties? a. by the end of the decade, automobile ownership had increased dramatically.. b. the government could tax gasoline and an increase in the use of cars increased federal and state revenue.. c. traffic began to create commuting problems that the government failed to address.. d. inexperienced drivers caused numerous accidents that made it difficult for hospitals to provide adequate care.

a: social security and social programs

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.