Why was the slight engineered into the top of the road

a so horses would not use the road

b so water would not puddle

c so the wagons would ride low to the ground

d so the road would be straight

What did president roosevelt do to aid panama in becoming an independent country? a. he negotiated a peace treaty with nicaragua to purchase the land. b. he invaded colombia to establish a us base for defense. c. he placed warships around panama to block sea lanes. d. he used dollar diplomacy to block imports to nicaragua.