What was the earliest profitable trading route for Oklahoma?
a. native American trails
b. river routes
c. European roads
d. military roads

b

Explanation:

everything about this just does not make sense. what is the question?

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

< 3