How should the verb travel be written

As societies modernize, what often happens to crime rates? a. they increase b. they decrease c. they remain the same d. they increase slightly and then fall rapidly

Why was the cumberland gap a good place for a trail

Why did the medicine lodge creek treaty fail to bring peace to west texas? a. native americans protested the sale of weapons on reservations. b. supporters of the treaty face discrimination in their own communities. c. the united states government and native americans both refused to fully carry it out. d. the united states government prevented its military from entering reservations.